Remove config module dependency from frontend

- Delete unused useWebsockets.ts hook
- Hardcode API URLs instead of using config module:
  - useClient.ts: default '/api'
  - useAuth.ts: '/api/auth' and '/api'
  - usePasskeys.ts: '/api/auth'
  - useImageLoader.ts: '/api'
  - useFiles.ts: '/api'
  - file-types.ts: '/api'
- Remove useWebsockets export from hooks/index.ts

src/workspaces/apps/FileBrowser/useFiles.ts

@@ -1,5 +1,6 @@
 import { useClient, getHeaders } from 'hooks/useClient';
-import { config } from 'config';
+
+const API_URL = '/api';
 
 export type DirEntry = {
   name: string;
@@ -79,7 +80,7 @@ export const useFiles = (root: string = 'home') => {
         triggerBlobDownload(blob, isDir && !name.endsWith('.zip') ? `${name}.zip` : name);
       } else {
         const headers = getHeaders();
-        const url = `${config.API_URL}/${withRoot('/file-browser/download').replace(/^\//, '')}`;
+        const url = `${API_URL}/${withRoot('/file-browser/download').replace(/^\//, '')}`;
         const res = await fetch(url, {
           method: 'POST',
           headers: { ...headers, 'Content-Type': 'application/json' },
@@ -98,7 +99,7 @@ export const useFiles = (root: string = 'home') => {
         formData.append('file', file, name);
       }
       const authHeaders = getHeaders();
-      const url = withRoot(`${config.API_URL}/file-browser/upload?path=${encodeURIComponent(path)}`);
+      const url = withRoot(`${API_URL}/file-browser/upload?path=${encodeURIComponent(path)}`);
 
       return new Promise((resolve, reject) => {
         const xhr = new XMLHttpRequest();