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/tool.test.tsx

@@ -1,5 +1,5 @@
 import { Excalidraw } from "../index";
-import { ExcalidrawImperativeAPI } from "../types";
+import type { ExcalidrawImperativeAPI } from "../types";
 import { resolvablePromise } from "../utils";
 import { render } from "./test-utils";
 import { Pointer } from "./helpers/ui";