feat(editor): mindmap gfx extension (#11936)

Closes: BS-3209

<!-- This is an auto-generated comment: release notes by coderabbit.ai -->

## Summary by CodeRabbit

- **New Features**
  - Introduced mind map view and store extensions, enhancing mind map integration and conversion to plain text and markdown formats.
  - Added priority property to quick tools, allowing for custom ordering in the toolbar.
- **Improvements**
  - Toolbar quick tools are now sorted by priority for a more intuitive user experience.
  - Updated toolbar and extension configurations to streamline available tools and extensions.
- **Bug Fixes**
  - Conditional registration of certain components ensures correct behavior in edgeless mode.
- **Chores**
  - Updated dependencies and project references to improve module integration and maintainability.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

blocksuite/affine/widgets/edgeless-toolbar/src/edgeless-toolbar.ts

@@ -345,6 +345,7 @@ export class EdgelessToolbarWidget extends WidgetComponent<RootBlockModel> {
       .map(tool =>
         tool({ block, gfx, toolbarContainer: this.toolbarContainer })
       )
+      .sort((a, b) => (b.priority ?? 0) - (a.priority ?? 0))
       .filter(({ enable = true }) => enable);
   }
 

blocksuite/affine/widgets/edgeless-toolbar/src/extension/index.ts

@@ -13,6 +13,7 @@ export interface QuickTool {
    * if not configured, the tool will not be shown in dense mode
    */
   menu?: MenuConfig;
+  priority?: number;
 }
 
 export interface SeniorTool {