fix(editor): suface component can be null (#12270)

Closes: BS-3149

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

## Summary by CodeRabbit

- **Refactor**
  - Improved internal handling of surface components across various tools, resulting in safer and more consistent access patterns.
  - Enhanced code maintainability and reliability without altering any visible features or user workflows.

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

blocksuite/affine/gfx/shape/src/overlay/shape-overlay.ts

@@ -1,7 +1,7 @@
 import {
+  getSurfaceComponent,
   type Options,
   type RoughCanvas,
-  type SurfaceBlockComponent,
   ToolOverlay,
 } from '@blocksuite/affine-block-surface';
 import {
@@ -87,7 +87,8 @@ export class ShapeOverlay extends ToolOverlay {
           shapeStyle
         );
 
-        (this.gfx.surfaceComponent as SurfaceBlockComponent).refresh();
+        const surface = getSurfaceComponent(this.gfx.std);
+        surface?.refresh();
       })
     );
   }