Reorder Transform section before Shapes in GalleryView

- Improves logical grouping of sections in the UI navigation

Update Aprillz.MewUI to 0.15.1 and fix class closure

- Ensures correct package version and closes ExpressionEvaluator class

Make window extension methods generic for Window subclasses

- Enables fluent usage with custom window types
- Improves API flexibility without changing functionality

Bump version to 0.14.0 in MewUI.Common.props

- Prepares for new release with updated version number

Bump MewUI version to 0.13.3

- Prepares for new release with updated version identifier

Bump MewUI version to 0.13.2

- Prepares for new release with updated versioning

Bump MewUI version to 0.13.1

- Prepares for new release with updated version identifier

Update MewUI and MewVG versions in props file

- Enables use of latest features and improvements in dependencies

Pack and publish all MewUI NuGet packages together

- Ensures all individual and meta packages are built and pushed in CI and locally

Update docs and props for new backends and metapackage

- Document new MewVG backend and metapackage structure
- Add install/package instructions for platform-specific packages
- Clarify implemented controls and panel spacing support
- Mark macOS and Hot Reload as complete in roadmap
- Bump version to 0.12.0 and improve trimming settings
- Add local props import and ignore for development overrides