UPDATE: Fix to stream/userpage routing, Added UserPage and Tidy to code;

Added ability to visit a user's profile page from their stream;
Cleaned up code formatting, primarily changing from single quotes to double quotes;
Removed unused SignupForm component;

frontend/package-lock.json

@@ -32,7 +32,7 @@
         "tailwindcss": "^3.4.17",
         "typescript": "~5.6.2",
         "typescript-eslint": "^8.18.2",
-        "vite": "^6.0.5"
+        "vite": "latest"
       }
     },
     "node_modules/@alloc/quick-lru": {