refactor(editor): remove global types in edgeless (#10092)

Closes: [BS-2553](https://linear.app/affine-design/issue/BS-2553/remove-global-types-in-edgeless)

blocksuite/affine/model/src/elements/mindmap/mindmap.ts

@@ -1,6 +1,7 @@
 import type {
   BaseElementProps,
   GfxModel,
+  GfxPrimitiveElementModel,
   PointTestOptions,
   SerializedElement,
 } from '@blocksuite/block-std/gfx';
@@ -44,7 +45,7 @@ export type MindmapNode = {
   id: string;
   detail: NodeDetail;
 
-  element: BlockSuite.SurfaceElementModel;
+  element: GfxPrimitiveElementModel;
   children: MindmapNode[];
 
   parent: MindmapNode | null;
@@ -836,7 +837,7 @@ export class MindmapElementModel extends GfxGroupLikeElementModel<MindmapElement
       return;
     }
 
-    const stashed = new Set<BlockSuite.SurfaceElementModel>();
+    const stashed = new Set<GfxPrimitiveElementModel>();
     const traverse = (node: MindmapNode) => {
       node.element.stash('xywh');
       stashed.add(node.element);
@@ -975,11 +976,3 @@ export class MindmapElementModel extends GfxGroupLikeElementModel<MindmapElement
   @field()
   accessor style: MindmapStyle = MindmapStyle.ONE;
 }
-
-declare global {
-  namespace BlockSuite {
-    interface SurfaceGroupLikeModelMap {
-      mindmap: MindmapElementModel;
-    }
-  }
-}