refactor: streamline layouts and switch to lucide icons

Author: Dimillian

package-lock.json

@@ -14,6 +14,7 @@
     "@tauri-apps/api": "^2",
     "@tauri-apps/plugin-dialog": "^2",
     "@tauri-apps/plugin-opener": "^2",
+    "lucide-react": "^0.562.0",
     "prismjs": "^1.30.0",
     "react": "^19.1.0",
     "react-dom": "^19.1.0",