fix: change terminal title to OpenCode

packages/opencode/src/cli/cmd/tui/app.tsx

@@ -173,14 +173,14 @@ function App() {
   // Update terminal window title based on current route and session
   createEffect(() => {
     if (route.data.type === "home") {
-      renderer.setTerminalTitle("opencode")
+      renderer.setTerminalTitle("OpenCode")
       return
     }
 
     if (route.data.type === "session") {
       const session = sync.session.get(route.data.sessionID)
       if (!session || SessionApi.isDefaultTitle(session.title)) {
-        renderer.setTerminalTitle("opencode")
+        renderer.setTerminalTitle("OpenCode")
         return
       }