Bruno Leroux 701385d5bd
Homogenize themes documentation (#168808)
## Description

This PR homogenizes `xxxTheme` and `xxxThemeData` classes documentation.
Mainly:
- Points to `xxxTheme.of` from `xxxThemeData` documentation instead of
using pseudo code (and add a code block in `xxxTheme.of` documentation
when it was missing.
- Fix `xxxTheme.of` documentation when the comment did not specify the
correct return type.

## Tests

Documentation only
2025-05-15 21:57:52 +00:00
..