refactor: update imports in various components for consistency and remove unused imports

src/main.tsx

@@ -1,6 +1,6 @@
 import { StrictMode } from 'react'
 import ReactDOM from 'react-dom/client'
-import { RouterProvider, createRouteMask, createRouter } from '@tanstack/react-router'
+import { RouterProvider, createRouter } from '@tanstack/react-router'
 
 // Import the generated route tree
 import { routeTree } from './routeTree.gen'