feat: Add smooth macOS-style page transitions

- Add fullscreen crossfade transition for login/logout (300ms fade-out + 400ms fade-in)
- Add slide-in-from-right animation for all page switches (Dashboard, Terminal, SSH Manager, Admin, Profile)
- Fix TypeScript compilation by adding esModuleInterop to tsconfig.node.json
- Pass handleLogout from DesktopApp to LeftSidebar for consistent transition behavior

All page transitions now use Tailwind animate-in utilities with 300ms duration for smooth, native-feeling UX

tsconfig.node.json

@@ -8,6 +8,7 @@
     "moduleResolution": "nodenext",
     "verbatimModuleSyntax": true,
     "moduleDetection": "force",
+    "esModuleInterop": true,
     "noEmit": false,
     "outDir": "./dist/backend",
     "strict": false,