fix(detail): resync reaction toggle across manga navigation

The detail page component is reused across /manga/A -> /manga/B
navigations (clicking a similar or recommendation card), so
ReactionButtons' locally-held `current` state kept the previous manga's
reaction until interacted with — a visibly wrong thumb on the new page.
Re-seed `current` from the loader-supplied prop via an effect keyed on
mangaId. Also fetch the homepage's two independent /me/* shelves
concurrently (Promise.allSettled) instead of in series.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

frontend/package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "mangalord-frontend",
-  "version": "0.109.0",
+  "version": "0.109.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "mangalord-frontend",
-      "version": "0.109.0",
+      "version": "0.109.1",
       "devDependencies": {
         "@lucide/svelte": "^1.16.0",
         "@playwright/test": "^1.48.0",