refactor: moving connector label to connector view (#11738)

### Changed
Moved connector label moving logic from `default-tool` to connector view.

#### Other infrastructure changes:​​
- Gfx element view now can handles drag events
- Added `context.preventDefault()` support to bypass built-in interactions in extension
- Handle the pointer events in element view will bypass the built-in interactions automatically

> The built-in interactions include element dragging, click selection, drag-to-scale operations, etc.

blocksuite/affine/blocks/root/src/edgeless/interact-extensions/dblclick-add-edgeless-text.ts

@@ -6,14 +6,17 @@ import {
   FeatureFlagService,
   TelemetryProvider,
 } from '@blocksuite/affine-shared/services';
-import type { PointerEventState } from '@blocksuite/std';
-import { InteractivityExtension } from '@blocksuite/std/gfx';
+import {
+  type GfxInteractivityContext,
+  InteractivityExtension,
+} from '@blocksuite/std/gfx';
 
 export class DblClickAddEdgelessText extends InteractivityExtension {
   static override key = 'dbl-click-add-edgeless-text';
 
   override mounted() {
-    this.event.on('dblclick', (e: PointerEventState) => {
+    this.event.on('dblclick', (ctx: GfxInteractivityContext) => {
+      const { event: e } = ctx;
       const textFlag = this.std.store
         .get(FeatureFlagService)
         .getFlag('enable_edgeless_text');