refactor: rebrand from Jumble to Smesh

- Replace all Jumble branding with Smesh throughout codebase
- Add new Smesh logo images (light/dark themes)
- Update Logo component to use PNG images with theme support
- Update URLs to git.mleku.dev/mleku/smesh
- Rename JumbleTranslate to SmeshTranslate
- Update all i18n locale files with new branding
- Add system theme detection CSS to prevent flash on load
- Update PWA manifest, docker-compose, and config files

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

package.json

@@ -1,5 +1,5 @@
 {
-  "name": "jumble",
+  "name": "smesh",
   "version": "0.1.0",
   "description": "A user-friendly Nostr client for exploring relay feeds",
   "private": true,
@@ -8,11 +8,12 @@
   "license": "MIT",
   "repository": {
     "type": "git",
-    "url": "git+https://github.com/CodyTseng/jumble"
+    "url": "git+https://git.mleku.dev/mleku/smesh"
   },
-  "homepage": "https://github.com/CodyTseng/jumble",
+  "homepage": "https://git.mleku.dev/mleku/smesh",
   "scripts": {
     "dev": "vite --host",
+    "dev:8080": "vite --host 0.0.0.0 --port 8080",
     "build": "tsc -b && vite build",
     "lint": "eslint .",
     "format": "prettier --write .",