fix: repair invalid binding on restore & fix type check (#8133)

packages/excalidraw/element/binding.ts

@@ -188,10 +188,8 @@ const getOriginalBindingIfStillCloseOfLinearElementEdge = (
       ? linearElement.startBinding?.elementId
       : linearElement.endBinding?.elementId;
   if (elementId) {
-    const element = elementsMap.get(
-      elementId,
-    ) as NonDeleted<ExcalidrawBindableElement>;
-    if (bindingBorderTest(element, coors, app)) {
+    const element = elementsMap.get(elementId);
+    if (isBindableElement(element) && bindingBorderTest(element, coors, app)) {
       return element;
     }
   }

packages/excalidraw/element/typeChecks.ts

@@ -132,7 +132,7 @@ export const isBindingElementType = (
 };
 
 export const isBindableElement = (
-  element: ExcalidrawElement | null,
+  element: ExcalidrawElement | null | undefined,
   includeLocked = true,
 ): element is ExcalidrawBindableElement => {
   return (