feat: add Supabase authentication context and routes

- Implemented Supabase authentication context in `supabase.tsx` for managing user login and logout.
- Created a new SVG logo file for branding.
- Set up main application entry point in `main.tsx` with router integration.
- Added web vitals reporting in `reportWebVitals.ts`.
- Generated route tree in `routeTree.gen.ts` for application routing.
- Established root route in `__root.tsx` with TanStack Router Devtools integration.
- Created authenticated route in `_authenticated.tsx` to protect routes.
- Developed planes route under authenticated section in `planes.tsx`.
- Implemented login route with form handling in `login.tsx`.
- Added index route with welcome message in `index.tsx`.
- Included basic styles in `styles.css`.
- Configured TypeScript settings in `tsconfig.json`.
- Set up Vite configuration with React and TanStack Router plugins in `vite.config.ts`.

src/App.css

@@ -0,0 +1,38 @@
+.App {
+  text-align: center;
+}
+
+.App-logo {
+  height: 40vmin;
+  pointer-events: none;
+}
+
+@media (prefers-reduced-motion: no-preference) {
+  .App-logo {
+    animation: App-logo-spin infinite 20s linear;
+  }
+}
+
+.App-header {
+  background-color: #282c34;
+  min-height: 100vh;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  font-size: calc(10px + 2vmin);
+  color: white;
+}
+
+.App-link {
+  color: #61dafb;
+}
+
+@keyframes App-logo-spin {
+  from {
+    transform: rotate(0deg);
+  }
+  to {
+    transform: rotate(360deg);
+  }
+}