Add the browser version, a toolbar, description previews and hints

Browser version
- Self-hosted proxy (server/) that serves the web build and bridges WebSocket
  connections to Mumble servers over TLS, with a server allowlist or allow-any mode
- WebSocket transport and a browser platform layer; identities live in the browser
- npm run build:web, dev:web, proxy and test:e2e:web; proxy unit tests

Interface
- Toolbar next to mute and deafen: description editor, settings, expand or collapse all
- Channels with a description show a marker; resting on the row previews it
- Collapse all keeps channels with people open
- Hints (title tooltips) can be switched on in a new Accessibility settings tab
- New identities can set the username suggested when connecting
- Own user information tells the client address from the one the server sees

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/ui/PublicServers.svelte

@@ -2,10 +2,11 @@
   import { onDestroy } from 'svelte';
   import Modal from './Modal.svelte';
   import Icon from './Icon.svelte';
-  import { native, type PublicServer, type PingResult } from '../lib/native.ts';
+  import { desktop as native, type PublicServer, type PingResult } from '../lib/native.ts';
   import { store } from '../lib/settings.svelte.ts';
   import { ui } from '../lib/ui.svelte.ts';
   import { sessions } from '../lib/session.svelte.ts';
+  import { identities } from '../lib/identities.svelte.ts';
 
   let { onclose }: { onclose: () => void } = $props();
 
@@ -95,11 +96,11 @@
     });
   }
 
-  // Connects right away with the name used last; the server is saved so it shows in the rail.
+  // Connects right away with the name used last (or the default identity's name); the server is saved so it shows in the rail.
   // Without a name to reuse, the add dialog asks for one.
   function connect(s: PublicServer) {
     const saved = store.servers.find(x => x.host === s.host && x.port === s.port);
-    const username = store.servers.at(-1)?.username;
+    const username = store.servers.at(-1)?.username || store.identityNames[identities.default?.id ?? ''];
     if (!saved && !username) return add(s);
     const server = saved ?? { id: crypto.randomUUID(), label: s.name || s.host, host: s.host, port: s.port, username: username!, password: '' };
     if (!saved) store.upsertServer(server);