refactor(Terminal): enhance session management and memoization

- Updated Terminal component to use memoization for performance optimization.
- Modified onStatusChange and onCloseSession props to include sessionId for better session tracking.
- Refactored TerminalLayer to utilize stable callback references for session management functions.
- Cleaned up unnecessary whitespace in TerminalLayer and TopTabs components.
- Adjusted index.tsx to improve rendering performance by removing React.StrictMode.

index.tsx

@@ -11,6 +11,6 @@ const root = ReactDOM.createRoot(rootElement);
 root.render(
   // StrictMode causes double renders in development - disabled for performance testing
   // <React.StrictMode>
-    <App />
+  <App />
   // </React.StrictMode>
 );