chore: set public path on the fly

frontend/src/App.vue

@@ -5,6 +5,9 @@
 </template>
 
 <script>
+// eslint-disable-next-line no-undef
+__webpack_public_path__ = window.FileBrowser.StaticURL + "/";
+
 export default {
   name: "app",
   mounted() {