refactor: default-tool box selection (#11800)

### Changed
- Rewrite box selection in `default-tool`, the view can decide whether to be selected in box selection by return a boolean value in `onBoxSelected` method
- Cleanup unnecessary states in `default-tool` and some naming problem

blocksuite/affine/blocks/frame/src/frame-block.ts

@@ -2,7 +2,7 @@ import { DefaultTheme, type FrameBlockModel } from '@blocksuite/affine-model';
 import { ThemeProvider } from '@blocksuite/affine-shared/services';
 import { Bound } from '@blocksuite/global/gfx';
 import { GfxBlockComponent } from '@blocksuite/std';
-import type { SelectedContext } from '@blocksuite/std/gfx';
+import type { BoxSelectionContext, SelectedContext } from '@blocksuite/std/gfx';
 import { cssVarV2 } from '@toeverything/theme/v2';
 import { html } from 'lit';
 import { state } from 'lit/decorators.js';
@@ -69,6 +69,16 @@ export class FrameBlockComponent extends GfxBlockComponent<FrameBlockModel> {
     return super.onSelected(context);
   }
 
+  override onBoxSelected(context: BoxSelectionContext) {
+    const { box } = context;
+    const bound = new Bound(box.x, box.y, box.w, box.h);
+    const elementBound = this.model.elementBound;
+
+    return (
+      this.model.childElements.length === 0 || bound.contains(elementBound)
+    );
+  }
+
   override renderGfxBlock() {
     const { model, showBorder, std } = this;
     const backgroundColor = std