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>

src/i18n/locales/zh.ts

@@ -94,7 +94,7 @@ export default {
     'Add an Account': '添加账户',
     'More options': '更多选项',
     'Add client tag': '添加客户端标签',
-    'Show others this was sent via Jumble': '告诉别人这是通过 Jumble 发送的',
+    'Show others this was sent via Smesh': '告诉别人这是通过 Smesh 发送的',
     'Are you sure you want to logout?': '确定要退出登录吗？',
     'relay sets': '服务器组',
     edit: '编辑',
@@ -197,9 +197,9 @@ export default {
     All: '全部',
     Reactions: '互动',
     Zaps: '打闪',
-    'Enjoying Jumble?': '喜欢 Jumble 吗？',
-    'Your donation helps me maintain Jumble and make it better! 😊':
-      '您的捐赠帮助我维护 Jumble 并使其更好！😊',
+    'Enjoying Smesh?': '喜欢 Smesh 吗？',
+    'Your donation helps me maintain Smesh and make it better! 😊':
+      '您的捐赠帮助我维护 Smesh 并使其更好！😊',
     'Earlier notifications': '更早的通知',
     'Temporarily display this note': '临时显示此笔记',
     buttonFollowing: '已关注',
@@ -251,7 +251,7 @@ export default {
     Translation: '翻译',
     Balance: '余额',
     characters: '字符',
-    jumbleTranslateApiKeyDescription:
+    smeshTranslateApiKeyDescription:
       '您可以在任何支持 LibreTranslate 的地方使用此 API key。服务地址是 {{serviceUrl}}',
     'Top up': '充值',
     'Will receive: {n} characters': '将获得: {{n}} 字符',
@@ -485,13 +485,13 @@ export default {
     Remote: '远程',
     'Encrypted Key': '加密私钥',
     'Private Key': '私钥',
-    'Welcome to Jumble': '欢迎来到 Jumble',
-    'Jumble is a client focused on browsing relays. Get started by exploring interesting relays or login to view your following feed.':
-      'Jumble 是一个专注于浏览服务器的客户端。从探索有趣的服务器开始，或者登录查看你的关注动态。',
+    'Welcome to Smesh': '欢迎来到 Smesh',
+    'Smesh is a client focused on browsing relays. Get started by exploring interesting relays or login to view your following feed.':
+      'Smesh 是一个专注于浏览服务器的客户端。从探索有趣的服务器开始，或者登录查看你的关注动态。',
     'Explore Relays': '探索服务器',
     'Choose a feed': '选择一个动态',
     'and {{x}} others': '和其他 {{x}} 人',
-    selfZapWarning: 'Jumble 对您给自己打赏所发生的事情概不负责。风险自负。😉⚡',
+    selfZapWarning: 'Smesh 对您给自己打赏所发生的事情概不负责。风险自负。😉⚡',
     'Emoji Pack': '表情包',
     'Emoji pack added': '表情包已添加',
     'Add emoji pack failed': '添加表情包失败',
@@ -582,7 +582,7 @@ export default {
     'Publish Highlight': '发布高亮',
     'Show replies': '显示回复',
     'Hide replies': '隐藏回复',
-    'Welcome to Jumble!': '欢迎来到 Jumble！',
+    'Welcome to Smesh!': '欢迎来到 Smesh！',
     'Your feed is empty because you are not following anyone yet. Start by exploring interesting content and following users you like!':
       '你的动态是空的，因为你还没有关注任何人。开始探索有趣的内容并关注你喜欢的用户吧！',
     'Search Users': '搜索用户',