refactor: move lib directory to libs for consistency

- Move src/lib/capacitor to src/libs/capacitor
- Move src/lib/fontawesome.ts to src/libs/fontawesome.ts
- Update import paths in main.capacitor.ts and main.common.ts
- Remove empty src/lib directory

This change standardizes the project structure by using the 'libs'
directory consistently throughout the codebase.

src/main.common.ts

@@ -6,7 +6,7 @@ import axios from "axios";
 import VueAxios from "vue-axios";
 import Notifications from "notiwind";
 import "./assets/styles/tailwind.css";
-import { FontAwesomeIcon } from "./lib/fontawesome";
+import { FontAwesomeIcon } from "./libs/fontawesome";
 import Camera from "simple-vue-camera";
 import { logger } from "./utils/logger";