feat: enhance terminal functionality and settings

- Added new endpoints for terminal settings: GET and PUT /settings to retrieve and update terminal configurations.
- Implemented session limit checks during session creation, returning a 429 status when the limit is reached.
- Introduced a new TerminalSection in settings view for customizing terminal appearance and behavior, including font family, default font size, line height, and screen reader mode.
- Added support for new terminal features such as search functionality and improved error handling with a TerminalErrorBoundary component.
- Updated terminal layout persistence to include session IDs for reconnection and enhanced terminal state management.
- Introduced new keyboard shortcuts for terminal actions, including creating new terminal tabs.
- Enhanced UI with scrollbar theming for terminal components.

apps/ui/src/routes/__root.tsx

@@ -36,6 +36,10 @@ function RootLayoutContent() {
       if (role === "textbox" || role === "searchbox" || role === "combobox") {
         return;
       }
+      // Don't intercept when focused inside a terminal
+      if (activeElement.closest(".xterm") || activeElement.closest("[data-terminal-container]")) {
+        return;
+      }
     }
 
     if (event.ctrlKey || event.altKey || event.metaKey) {