fix: add CellSelection support for bubble menu

packages/extension-bubble-menu/src/bubble-menu-plugin.ts

@@ -88,12 +88,11 @@ export class BubbleMenuView {
       return
     }
 
-    const {
+    const { empty, $anchor, ranges } = selection
-      from,
+
-      to,
+    // support for CellSelections
-      empty,
+    const from = Math.min(...ranges.map(range => range.$from.pos))
-      $anchor,
+    const to = Math.max(...ranges.map(range => range.$to.pos))
-    } = selection
 
     // Sometime check for `empty` is not enough.
     // Doubleclick an empty paragraph returns a node size of 2.