refactor: remove redundant far-left [S][@] selector

ServerBar already has [@] at the top and server icons below.
The far-left w-16 div was a duplicate layer. ServerBar now
navigates on server/DM clicks.

web/src/components/Layout.tsx

@@ -34,12 +34,10 @@ export function Layout() {
   const updateProfile = useAuthStore((state) => state.updateProfile);
   const wsConnect = useWebSocketStore((s) => s.connect);
   const wsDisconnect = useWebSocketStore((s) => s.disconnect);
-  const setActiveServer = useServerStore((s) => s.setActiveServer);
   const navigate = useNavigate();
   const location = useLocation();
   const [showStatusMenu, setShowStatusMenu] = useState(false);
   const isDM = useLayoutStore((s) => s.isDM);
-  const setDM = useLayoutStore((s) => s.setDM);
   const [showServerSettings, setShowServerSettings] = useState(false);
   const activeServerId = useServerStore((s) => s.activeServerId);
   useEffect(() => {
@@ -118,34 +116,6 @@ export function Layout() {
           </div>
         </div>
         <div className="flex-1 flex min-h-0">
-          <div className="flex flex-col items-center w-16 bg-gb-bg-h border-r border-gb-bg-t py-2 gap-2 shrink-0">
-            <button
-              onClick={() => { setDM(false); navigate('/'); }}
-              className={`w-11 h-11 flex items-center justify-center font-mono text-xs border rounded ${
-                !isDM
-                  ? 'bg-gb-bg-t text-gb-orange border-gb-orange'
-                  : 'bg-gb-bg-s text-gb-fg border-gb-bg-t hover:border-gb-fg-t'
-              }`}
-              title="Servers"
-            >
-              [S]
-            </button>
-            <button
-              onClick={() => {
-                setDM(true);
-                setActiveServer(null);
-                navigate('/dm');
-              }}
-              className={`w-11 h-11 flex items-center justify-center font-mono text-xs border rounded ${
-                isDM
-                  ? 'bg-gb-bg-t text-gb-orange border-gb-orange'
-                  : 'bg-gb-bg-s text-gb-fg border-gb-bg-t hover:border-gb-fg-t'
-              }`}
-              title="Direct Messages"
-            >
-              [@]
-            </button>
-          </div>
           <ServerBar />
           {isDM ? <ConversationList /> : <ChannelList />}
           <div className="flex-1 min-w-0 flex flex-col">