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/element/newElement.test.ts

@@ -3,7 +3,7 @@ import { mutateElement } from "./mutateElement";
 import { API } from "../tests/helpers/api";
 import { FONT_FAMILY, ROUNDNESS } from "../constants";
 import { isPrimitive } from "../utils";
-import { ExcalidrawLinearElement } from "./types";
+import type { ExcalidrawLinearElement } from "./types";
 
 const assertCloneObjects = (source: any, clone: any) => {
   for (const key in clone) {