GPU accelerated maskeditor rendering (#6767)

## GPU accelerated brush engine for the mask editor

- Full GPU acceleration using TypeGPU and type-safe shaders
- Catmull-Rom Spline Smoothing
- arc-length equidistant resampling
- much improved performance, even for huge images
- photoshop like opacity clamping for brush strokes
- much improved soft brushes
- fallback to CPU fully implemented, much improved CPU rendering
features as well

### Tested Browsers
- Chrome (fully supported)
- Safari 26 (fully supported, prev versions CPU fallback)
- Firefox (CPU fallback, flags needed for full support)



https://github.com/user-attachments/assets/b7b5cb8a-2290-4a95-ae7d-180e11fccdb0



https://github.com/user-attachments/assets/4297aaa5-f249-499a-9b74-869677f1c73b



https://github.com/user-attachments/assets/602b4783-3e2b-489e-bcb9-70534bcaac5e

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-6767-GPU-accelerated-maskeditor-rendering-2b16d73d3650818cb294e1fca03f6169)
by [Unito](https://www.unito.io)

pnpm-workspace.yaml

@@ -43,6 +43,7 @@ catalog:
   '@vue/test-utils': ^2.4.6
   '@vueuse/core': ^11.0.0
   '@vueuse/integrations': ^13.9.0
+  '@webgpu/types': ^0.1.66
   algoliasearch: ^5.21.0
   axios: ^1.8.2
   cross-env: ^10.1.0
@@ -83,9 +84,11 @@ catalog:
   tailwindcss-primeui: ^0.6.1
   tsx: ^4.15.6
   tw-animate-css: ^1.3.8
+  typegpu: ^0.8.2
   typescript: ^5.9.2
   typescript-eslint: ^8.44.0
   unplugin-icons: ^0.22.0
+  unplugin-typegpu: 0.8.0
   unplugin-vue-components: ^0.28.0
   vite: ^5.4.19
   vite-plugin-dts: ^4.5.4