Add Arrowheads to Arrows (#2452)

Co-authored-by: dwelle <luzar.david@gmail.com>
Co-authored-by: Lipis <lipiridis@gmail.com>

src/tests/__snapshots__/selection.test.tsx.snap

@@ -5,6 +5,7 @@ Object {
   "angle": 0,
   "backgroundColor": "transparent",
   "boundElementIds": null,
+  "endArrowhead": "arrow",
   "endBinding": null,
   "fillStyle": "hachure",
   "groupIds": Array [],
@@ -25,6 +26,7 @@ Object {
   ],
   "roughness": 1,
   "seed": 337897,
+  "startArrowhead": null,
   "startBinding": null,
   "strokeColor": "#000000",
   "strokeSharpness": "round",
@@ -44,6 +46,7 @@ Object {
   "angle": 0,
   "backgroundColor": "transparent",
   "boundElementIds": null,
+  "endArrowhead": null,
   "endBinding": null,
   "fillStyle": "hachure",
   "groupIds": Array [],
@@ -64,6 +67,7 @@ Object {
   ],
   "roughness": 1,
   "seed": 337897,
+  "startArrowhead": null,
   "startBinding": null,
   "strokeColor": "#000000",
   "strokeSharpness": "round",