fix(frontend): animate full race list row on hover (li, not inner link)

Move scale/shadow transition to .race-card--action; keyboard focus ring on link.
Version 0.4.2.

Made-with: Cursor

frontend/package.json

@@ -1,7 +1,7 @@
 {
   "name": "calendar-run-frontend",
   "private": true,
-  "version": "0.4.1",
+  "version": "0.4.2",
   "type": "module",
   "scripts": {
     "dev": "vite",