chore: Unify math types, utils and functions (#8389)

Co-authored-by: dwelle <5153846+dwelle@users.noreply.github.com>

packages/excalidraw/element/newElement.test.ts

@@ -4,6 +4,8 @@ import { API } from "../tests/helpers/api";
 import { FONT_FAMILY, ROUNDNESS } from "../constants";
 import { isPrimitive } from "../utils";
 import type { ExcalidrawLinearElement } from "./types";
+import type { LocalPoint } from "../../math";
+import { point } from "../../math";
 
 const assertCloneObjects = (source: any, clone: any) => {
   for (const key in clone) {
@@ -36,10 +38,7 @@ describe("duplicating single elements", () => {
     element.__proto__ = { hello: "world" };
 
     mutateElement(element, {
-      points: [
-        [1, 2],
-        [3, 4],
-      ],
+      points: [point<LocalPoint>(1, 2), point<LocalPoint>(3, 4)],
     });
 
     const copy = duplicateElement(null, new Map(), element);