fix: make arrow binding area adapt to zoom levels (#8927)

* make binding area adapt to zoom

* revert stroke color

* normalize binding gap

* reduce normalized gap

packages/excalidraw/data/transform.test.ts

@@ -779,7 +779,7 @@ describe("Test Transform", () => {
         elementId: "rect-1",
         fixedPoint: null,
         focus: 0,
-        gap: 205,
+        gap: 14,
       });
       expect(rect.boundElements).toStrictEqual([
         {