refactor: rewrite dblclick and selection logic of default-tool (#11036)

continue #10824

### Changed
- Moved double-click-to-edit behavior from the default tool to individual model views
- Introduced `onSelected` callback interface in gfx view components to allows developers to override default selection logic

blocksuite/integration-test/src/editors/editor-container.ts

@@ -166,7 +166,7 @@ export class TestAffineEditorContainer extends SignalWatcher(
   override firstUpdated() {
     if (this.mode === 'page') {
       setTimeout(() => {
-        if (this.autofocus) {
+        if (this.autofocus && this.mode === 'page') {
           const richText = this.querySelector('rich-text');
           const inlineEditor = richText?.inlineEditor;
           inlineEditor?.focusEnd();