Adjust installation instructions

Adjust Paint Palettes compatibility preference help text

Bump version to 1.2.0

Fix error report format when applying colors from the sidebar

Fix constructor issue caused by a breaking change in Blender 4.4

Change addon prefix from EDITVERTCOL to VCOLTOOLS

Use `srgb_to_linear` when creating the default palette

Fix Paint Palettes compatibility

Improve type hints, configure pyright

Change reload order

Convert addon to the extension format

Update addon id and license

Move "Paint Vertex Colors" 3D context menu button to the bottom of the list

Improve Paint Palette button styling

Improve consistency between Paint Palette and built in palettes