feat(editor): add animation for switching to edgeless mode firstly (#10021)

Close [BS-2327](https://linear.app/affine-design/issue/BS-2327/page-block-%E5%9C%A8-edgeless-%E5%88%87%E6%8D%A2%E7%BC%A9%E6%94%BE%E5%8A%A8%E7%94%BB)

### What Changes:
- Add a zoom animation when switching to edgeless mode firstly
- Move viewport record from `sessionStorage` to `localStorage`

https://github.com/user-attachments/assets/dac11aab-76bd-44b1-8c0e-4a8a10919841

blocksuite/framework/global/src/utils/model/bound.ts

@@ -71,11 +71,11 @@ export class Bound implements IBound {
 
   y: number;
 
-  get bl() {
+  get bl(): IVec {
     return [this.x, this.y + this.h];
   }
 
-  get br() {
+  get br(): IVec {
     return [this.x + this.w, this.y + this.h];
   }
 
@@ -155,7 +155,7 @@ export class Bound implements IBound {
     return [this.x, this.y];
   }
 
-  get tr() {
+  get tr(): IVec {
     return [this.x + this.w, this.y];
   }