* Docs: Remove 'Reference' prefix from all reference topic filenames: Per issue #46818, prefixing reference topics with "Reference" can damage usability. Remove the prefix from filenames.
* Docs: Remove "Reference:" prefix from titles and ToC headings: Per issue #46818, prefixing reference topics with "Reference" can damage usability. Remove the prefix from titles and ToC headings. H1s retain the prefix to emphasize the nature of the doc without affecting the docs' discoverability.
* Docs: Move Transformation functions reference alongside Transformation docs
* Docs: Update links to reference docs in Transformation docs
* Docs: Update links to reference docs in Panels docs
* Docs: Update links to query options reference across docs
* Docs: Update links to standard field definitions reference across docs
* Docs: Update links to calculation types reference across docs
* Docs: Update links to transformation functions reference across docs
* Docs: Rename apply transformation doc filename to add transformation
* Docs: Rename apply transformation doc to add transformation
* Docs: Update links to add transformation doc across docs
* Docs: Update relrefs in Transformation functions reference
And $__interval_ms too
These docs were added in PR #13148 over 3 years ago, but since then the
content has moved without the links being updated to match.
Improves SQL data sources documentation in regards to Grafana 8 changes
and adds some additional upgrade notes in regards to this.
Ref #35390
Ref #38666
Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com>