Closes #57388.

When a dock is listed in `resize_all_panels_in_dock`, reset its
compatible panels to the active panel's default size. This applies to
the reset actions and resize-handle double-clicks. Docks not listed in
the setting continue to reset only the active panel.

Adds regression coverage for fixed panels with different defaults,
flexible panels, and active-panel-only resets.

Release Notes:

- Fixed dock size reset commands only resetting the active panel when
`resize_all_panels_in_dock` is enabled.

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Co-authored-by: dino <dinojoaocosta@gmail.com>