fix(editor): inline latex editor should not be shown when doc is readonly (#9794)

[BS-2442](https://linear.app/affine-design/issue/BS-2442/只读时-inline-latex-node-点击不应该弹出-modal)

blocksuite/affine/components/src/rich-text/inline/presets/nodes/latex-node/latex-node.ts

@@ -161,6 +161,9 @@ export class AffineLatexNode extends SignalWatcher(
     this.disposables.addFromEvent(this, 'click', e => {
       e.preventDefault();
       e.stopPropagation();
+      if (this.readonly) {
+        return;
+      }
       this.toggleEditor();
     });
 
@@ -212,6 +215,10 @@ export class AffineLatexNode extends SignalWatcher(
     );
   }
 
+  get readonly() {
+    return this.std.store.readonly;
+  }
+
   @property({ attribute: false })
   accessor delta: DeltaInsert<AffineTextAttributes> = {
     insert: ZERO_WIDTH_SPACE,