fix: v1.26.1 — hero/album/playlist background flickering

Background of Hero carousel, Album Detail and Playlist Detail was
flickering for up to 20 seconds on first visit. useCachedUrl with
fallbackToFetch=true returned the raw server URL immediately, causing
a double render — once with the HTTP URL and again when the blob was
ready. Fixed by passing fallbackToFetch=false in all three locations.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

package.json

@@ -1,6 +1,6 @@
 {
   "name": "psysonic",
-  "version": "1.26.0",
+  "version": "1.26.1",
   "private": true,
   "scripts": {
     "dev": "vite",