Bruno Leroux 6fb9c9e4b6
Update some comments to reflect theme normalization (#179013)
## Description

This PR updates some comments in AppBar, Banner and BottomAppBar to
reflect the changes related to Theme normalization.

## Related Issue

Related to https://github.com/flutter/flutter/issues/91772

## Tests

- Documentation only
2025-12-01 16:59:32 +00:00
..
2024-12-19 20:06:21 +00:00
2024-12-19 20:06:21 +00:00