This method extracts the 2 or 3-letter language code from `OS::get_locale()`,
making it easier for users to identify the "main" language code for users
that might have different OS locales due to different OS or region, but
should be matched to the same translation (e.g. "generic" Spanish).
Fixes#40703.
For the time being we don't support writing a description for those, preferring
having all details in the method's description.
Using self-closing tags saves half the lines, and prevents contributors from
thinking that they should write the argument or return documentation there.
We already removed it from the online docs with #35132.
Currently it can only be "Built-In Types" (Variant types) or "Core"
(everything else), which is of limited use.
We might also want to consider dropping it from `ClassDB` altogether
in Godot 4.0.
- Document a few more properties and methods
- Add more information to many classes
- Fix lots of typos and gramar mistakes
- Use [code] tags for parameters consistently
- Use [b] and [i] tags consistently
- Put "Warning:" and "Note:" on their own line to be more visible,
and make them always bold
- Tweak formatting in code examples to be more readable
- Use double quotes consistently
- Add more links to third-party technologies
While the master branch is in development state for the next stable branch,
its links should point to the "latest" docs branch, to ensure that users of
the unstable builds are linked to the relevant documentation.
Those links could be switched to stable branch subdomains before branching
off for a new major or minor release, to start tracking the frozen stable
docs branches.
See discussion in #29104.
