feat: enhance Excalidraw editor UI and autosave functionality

- Redesigned editor toolbar with improved layout and accessibility attributes
- Added automatic save after 7 seconds of inactivity for better data protection
- Replaced emoji icons with SVG icons for consistent styling and accessibility
- Added success toasts for PNG/SVG exports with destination path
- Updated button styles and layout for better visual hierarchy
- Added aria-labels and improved keyboard navigation support
- Made action buttons optionally hideable via

vault/folder-4/Nouvelle note 10.md

@@ -12,11 +12,6 @@ task: true
 archive: true
 draft: true
 private: true
-color: "#EF4444"
-tags:
-  - configuration
-  - tag4
-  - test
 ---
 # TEST