Bruno Leroux 57c3f8b665
Add FloatingActionButtonTheme (#179736)
## Description

This PR adds the `FloatingActionButtonTheme` subclass of InheritedTheme.
Similarly to other theme classes.

This missing theme class was mentioned in
[flutter.dev/go/material-theme-system-updates](http://flutter.dev/go/material-theme-system-updates):
"FloatingActionButtonThemeData is conformant but there’s no
FloatingActionButtonTheme class. "


## Related Issue

Fixes [Missing
FloatingActionButtonTheme](https://github.com/flutter/flutter/issues/179735)

## Tests

Adds 2 tests.
2025-12-17 14:28:25 +00:00
..

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