Fixing SDK xrefs

Fix all of the broken xrefs in the SDK docs that are flagged up in the Antora build.

repo: https://github.com/couchbase/docs-sdk-c | branch: release/2.7 | component: c-sdk | version: 2.7
path: modules/ROOT/pages/sample-application.adoc | xref: dotnet-sdk::sample-app-backend.adoc
path: modules/ROOT/pages/sample-application.adoc | xref: python-sdk::sample-app-backend.adoc
path: modules/ROOT/pages/sample-application.adoc | xref: php-sdk::sample-app-backend.adoc

repo: https://github.com/couchbase/docs-sdk-c | branch: release/3.0 | component: c-sdk | version: 3.0
path: modules/concept-docs/pages/documents.adoc | xref: view-queries-with-sdk.adoc
path: modules/concept-docs/pages/errors.adoc | xref: howtos:error-handling.adoc
path: modules/howtos/pages/health-check.adoc | xref: concept-docs/health-check.adoc
path: modules/howtos/pages/kv-operations.adoc | xref: :concept-docs:documents.adoc
path: modules/howtos/pages/kv-operations.adoc | xref: :hello-world:start-using-sdk.adoc

repo: https://github.com/couchbase/docs-sdk-dotnet | branch: release/2.4 | component: dotnet-sdk | version: 2.4
path: modules/ROOT/pages/sample-application.adoc | xref: dotnet-sdk::sample-app-backend.adoc
path: modules/ROOT/pages/sample-application.adoc | xref: python-sdk::sample-app-backend.adoc
path: modules/ROOT/pages/sample-application.adoc | xref: php-sdk::sample-app-backend.adoc

repo: https://github.com/couchbase/docs-sdk-dotnet | branch: release/2.5 | component: dotnet-sdk | version: 2.5
path: modules/ROOT/pages/full-text-search-overview.adoc | xref: java-sdk::full-text-searching-with-sdk.adoc
path: modules/ROOT/pages/sample-application.adoc | xref: dotnet-sdk::sample-app-backend.adoc
path: modules/ROOT/pages/sample-application.adoc | xref: python-sdk::sample-app-backend.adoc
path: modules/ROOT/pages/sample-application.adoc | xref: php-sdk::sample-app-backend.adoc

repo: https://github.com/couchbase/docs-sdk-dotnet | branch: release/3.0 | component: dotnet-sdk | version: 3.0
path: modules/concept-docs/pages/documents.adoc | xref: view-queries-with-sdk.adoc
path: modules/howtos/pages/health-check.adoc | xref: concept-docs/health-check.adoc

repo: https://github.com/couchbase/docs-sdk-go | branch: release/1.2 | component: go-sdk | version: 1.2
path: modules/ROOT/pages/full-text-search-overview.adoc | xref: java-sdk::full-text-searching-with-sdk.adoc
path: modules/ROOT/pages/sample-application.adoc | xref: dotnet-sdk::sample-app-backend.adoc
path: modules/ROOT/pages/sample-application.adoc | xref: python-sdk::sample-app-backend.adoc
path: modules/ROOT/pages/sample-application.adoc | xref: php-sdk::sample-app-backend.adoc

repo: https://github.com/couchbase/docs-sdk-go | branch: release/2.0 | component: go-sdk | version: 2.0
path: modules/concept-docs/pages/documents.adoc | xref: view-queries-with-sdk.adoc
path: modules/hello-world/pages/start-using-sdk.adoc | xref: migrating-sdk-code-to-3.n.adoc
path: modules/howtos/pages/health-check.adoc | xref: concept-docs/health-check.adoc
path: modules/howtos/pages/working-with-collections.adoc | xref: start-using-sdk.adoc

repo: https://github.com/couchbase/docs-sdk-go | branch: release/2.1 | component: go-sdk | version: 2.1
path: modules/hello-world/pages/start-using-sdk.adoc | xref: migrating-sdk-code-to-3.n.adoc
path: modules/howtos/pages/health-check.adoc | xref: concept-docs/health-check.adoc
path: modules/howtos/pages/working-with-collections.adoc | xref: start-using-sdk.adoc

repo: https://github.com/couchbase/docs-sdk-java | branch: release/2.4 | component: java-sdk | version: 2.4
path: modules/ROOT/pages/sample-application.adoc | xref: dotnet-sdk::sample-app-backend.adoc
path: modules/ROOT/pages/sample-application.adoc | xref: python-sdk::sample-app-backend.adoc
path: modules/ROOT/pages/sample-application.adoc | xref: php-sdk::sample-app-backend.adoc

repo: https://github.com/couchbase/docs-sdk-java | branch: release/2.5 | component: java-sdk | version: 2.5
path: modules/ROOT/pages/full-text-search-overview.adoc | xref: java-sdk::full-text-searching-with-sdk.adoc
path: modules/ROOT/pages/sample-application.adoc | xref: dotnet-sdk::sample-app-backend.adoc
path: modules/ROOT/pages/sample-application.adoc | xref: python-sdk::sample-app-backend.adoc
path: modules/ROOT/pages/sample-application.adoc | xref: php-sdk::sample-app-backend.adoc

repo: https://github.com/couchbase/docs-sdk-java | branch: release/3.0 | component: java-sdk | version: 3.0
path: modules/concept-docs/pages/documents.adoc | xref: view-queries-with-sdk.adoc
path: modules/howtos/pages/error-handling.adoc | xref: tracing-from-the-sdk.adoc
path: modules/howtos/pages/health-check.adoc | xref: concept-docs/health-check.adoc

repo: https://github.com/couchbase/docs-sdk-nodejs | branch: release/2.3 | component: nodejs-sdk | version: 2.3
path: modules/ROOT/pages/sample-application.adoc | xref: dotnet-sdk::sample-app-backend.adoc
path: modules/ROOT/pages/sample-application.adoc | xref: python-sdk::sample-app-backend.adoc
path: modules/ROOT/pages/sample-application.adoc | xref: php-sdk::sample-app-backend.adoc

repo: https://github.com/couchbase/docs-sdk-nodejs | branch: release/2.4 | component: nodejs-sdk | version: 2.4
path: modules/ROOT/pages/full-text-search-overview.adoc | xref: java-sdk::full-text-searching-with-sdk.adoc
path: modules/ROOT/pages/sample-application.adoc | xref: dotnet-sdk::sample-app-backend.adoc
path: modules/ROOT/pages/sample-application.adoc | xref: python-sdk::sample-app-backend.adoc
path: modules/ROOT/pages/sample-application.adoc | xref: php-sdk::sample-app-backend.adoc

repo: https://github.com/couchbase/docs-sdk-nodejs | branch: release/3.0 | component: nodejs-sdk | version: 3.0
path: modules/concept-docs/pages/documents.adoc | xref: view-queries-with-sdk.adoc
path: modules/hello-world/pages/start-using-sdk.adoc | xref: migrating-sdk-code-to-3.n.adoc
path: modules/howtos/pages/health-check.adoc | xref: concept-docs/health-check.adoc

repo: https://github.com/couchbase/docs-sdk-php | branch: release/2.3 | component: php-sdk | version: 2.3
path: modules/ROOT/pages/sample-application.adoc | xref: dotnet-sdk::sample-app-backend.adoc
path: modules/ROOT/pages/sample-application.adoc | xref: python-sdk::sample-app-backend.adoc
path: modules/ROOT/pages/sample-application.adoc | xref: php-sdk::sample-app-backend.adoc

repo: https://github.com/couchbase/docs-sdk-php | branch: release/2.6 | component: php-sdk | version: 2.6
path: modules/ROOT/pages/core-operations.adoc | xref:

@server:n1ql:n1ql-language-reference:update.adoc

repo: https://github.com/couchbase/docs-sdk-php | branch: release/3.0 | component: php-sdk | version: 3.0
path: modules/concept-docs/pages/documents.adoc | xref: view-queries-with-sdk.adoc
path: modules/howtos/pages/error-handling.adoc | xref: tracing-from-the-sdk.adoc
path: modules/howtos/pages/health-check.adoc | xref: concept-docs/health-check.adoc

repo: https://github.com/couchbase/docs-sdk-python | branch: release/2.2 | component: python-sdk | version: 2.2
path: modules/ROOT/pages/full-text-search-overview.adoc | xref: java-sdk::full-text-searching-with-sdk.adoc
path: modules/ROOT/pages/sample-application.adoc | xref: dotnet-sdk::sample-app-backend.adoc
path: modules/ROOT/pages/sample-application.adoc | xref: python-sdk::sample-app-backend.adoc
path: modules/ROOT/pages/sample-application.adoc | xref: php-sdk::sample-app-backend.adoc

repo: https://github.com/couchbase/docs-sdk-python | branch: release/3.0 | component: python-sdk | version: 3.0
path: modules/concept-docs/pages/documents.adoc | xref: view-queries-with-sdk.adoc
path: modules/howtos/pages/health-check.adoc | xref: concept-docs/health-check.adoc
path: modules/howtos/pages/kv-operations.adoc | xref: :concept-docs:documents.adoc
path: modules/project-docs/pages/3.0-pre-release-notes.adoc | xref: 2.10@c-sdk::sdk-release-notes.adoc.adoc
path: modules/project-docs/pages/migrating-sdk-code-to-3.n.adoc | xref: howtos:authentication.adoc

repo: https://github.com/couchbase/docs-sdk-scala | branch: release/1.0 | component: scala-sdk | version: 1.0
path: modules/concept-docs/pages/documents.adoc | xref: view-queries-with-sdk.adoc
path: modules/howtos/pages/health-check.adoc | xref: concept-docs/health-check.adoc
path: modules/howtos/pages/n1ql-queries-with-sdk.adoc | xref: howtos:concurrent-async-apis.adoc.adoc