Fix DECORATIVE widget drawing outside of window

Add missing [[fallthrough]] attribute

Remove unnecessary call to regenerateCols() in Timeline::refresh()

Related to:
#5367 (comment)

[ui] Fix drawing cursor at the end of the Entry/Combobox field

Regression introduced in 1a6a397

Update laf module

Mitigate Linux/X11 lag when resizing windows (#5028)

In relation to these findings:
#5166 (comment)
#5166 (comment)

Fix crash (and show error message) when default font is nullptr (fix #…

…5208)

Probably an edge-case for users that are creating new themes.

Rename ui::Accelerator to ui::Shortcut

This was a pending refactor, where "user.aseprite-keys" files were
already using the "shortcut" attribute (instead of "accelerator").
This will include a refactor in the Weblate projects/all translations
to change [select_accelerator] section to [select_shortcut]. But that
must be coordinated after this commit is merged.

Merge branch 'main' into beta

[lua] Update scripting API version to 32