build: enable consistent type imports eslint rule (#7992)

* build: enable consistent type imports eslint rule

* change to warn

* fix the warning in example and excalidraw-app

* fix packages

* enable type annotations and throw error for the rule

packages/excalidraw/tests/zindex.test.tsx

@@ -9,10 +9,10 @@ import {
   actionSendToBack,
   actionDuplicateSelection,
 } from "../actions";
-import { AppState } from "../types";
+import type { AppState } from "../types";
 import { API } from "./helpers/api";
 import { selectGroupsForSelectedElements } from "../groups";
-import {
+import type {
   ExcalidrawElement,
   ExcalidrawFrameElement,
   ExcalidrawSelectionElement,