Refactor documentation for Blender GS Framework and Squirrel integration

- Updated titles and descriptions for shader and animation panels to reflect new naming conventions.
- Enhanced explanations in the shader panel documentation, emphasizing automatic saving and loading of material properties.
- Revised the squirrel tab documentation to clarify its functionality and integration with the animation system.
- Added new sections for LOD properties and ScriptedObject properties in the custom properties reference.
- Adjusted object types and asset types documentation to align with the latest naming and categorization standards.
- Improved tutorial content for animations, materials, and physics, ensuring consistency with the updated interface.
- Updated index page to reflect the new structure and provide clearer navigation for users.

src/content/docs/index.mdx

@@ -1,40 +1,23 @@
 ---
-title: Welcome to Starlight
-description: Get started building your docs site with Starlight.
-template: splash # Remove or comment out this line to display the site sidebar on this page.
+title: Develter Documentation
+description: Documentation des outils Develter — addon Blender GS Framework et scripting Squirrel.
+template: splash
 hero:
-  tagline: Congrats on setting up a new Starlight project!
-  image:
-    file: ../../assets/houston.webp
+  tagline: La documentation des outils Develter — import/export de scènes GS Framework dans Blender et scripting Squirrel.
   actions:
-    - text: Example Guide
-      link: /squirrel/overview
+    - text: Documentation Blender
+      link: /blender/getting-started/installation/
+      icon: right-arrow
+      variant: primary
+    - text: Documentation Squirrel
+      link: /squirrel/overview/
       icon: right-arrow
-    - text: Read the Starlight docs
-      link: https://starlight.astro.build
-      icon: external
       variant: minimal
 ---
 
-import { Card, CardGrid } from '@astrojs/starlight/components';
+import { LinkCard, CardGrid } from '@astrojs/starlight/components';
 
-## Next steps
-
-<CardGrid stagger>
-	<Card title="Update content" icon="pencil">
-		Edit `src/content/docs/index.mdx` to see this page change.
-	</Card>
-	<Card title="Change page layout" icon="document">
-		Delete `template: splash` in `src/content/docs/index.mdx` to display a
-		sidebar on this page.
-	</Card>
-	<Card title="Add new content" icon="add-document">
-		Add Markdown or MDX files to `src/content/docs` to create new pages.
-	</Card>
-	<Card title="Configure your site" icon="setting">
-		Edit your `sidebar` and other config in `astro.config.mjs`.
-	</Card>
-	<Card title="Read the docs" icon="open-book">
-		Learn more in [the Starlight Docs](https://starlight.astro.build/).
-	</Card>
+<CardGrid>
+  <LinkCard title="Blender" href="/blender/getting-started/installation/" description="Addon GS Framework : import/export de scènes, géométrie, matériaux, physique, tracks et animations." />
+  <LinkCard title="Squirrel" href="/squirrel/overview/" description="Le langage de scripting du moteur." />
 </CardGrid>