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

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

packages/excalidraw/tests/fixtures/elementFixture.ts

@@ -1,3 +1,4 @@
+import type { Radians } from "../../../math";
 import { DEFAULT_FONT_FAMILY } from "../../constants";
 import type { ExcalidrawElement } from "../../element/types";
 
@@ -7,7 +8,7 @@ const elementBase: Omit<ExcalidrawElement, "type"> = {
   y: 237,
   width: 214,
   height: 214,
-  angle: 0,
+  angle: 0 as Radians,
   strokeColor: "#000000",
   backgroundColor: "#15aabf",
   fillStyle: "hachure",