feat: results skeleton on the search page

The search loader now awaits only the chip cloud (its auth gate) and streams
the view-specific results, so switching tag / view / sort / text shows a
SearchResultsSkeleton in place of the frozen previous list until the query
resolves.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

frontend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "mangalord-frontend",
-  "version": "0.118.1",
+  "version": "0.119.0",
   "private": true,
   "type": "module",
   "scripts": {