Fix Account Owner Dropdown to Display Team Member Profile Pictures #11370 (#11385)

#11370  & #11402
### Changes made:
1. Updated search.service.ts to properly handle workspace member avatar
and Person Avatar URLs with authentication tokens
2. Integrated FileService for token generation
3. Added FileModule to SearchModule for dependency injection

### Implementation details:
- Used getImageUrlWithToken to append authentication tokens to avatar
URLs specifically for workspace members

---------

Co-authored-by: etiennejouan <jouan.etienne@gmail.com>

packages/twenty-server/src/engine/core-modules/file/services/file.service.ts

@@ -27,7 +27,7 @@ export class FileService {
     });
   }
 
-  async encodeFileToken(payloadToEncode: Record<string, any>) {
+  encodeFileToken(payloadToEncode: Record<string, any>) {
     const fileTokenExpiresIn = this.twentyConfigService.get(
       'FILE_TOKEN_EXPIRES_IN',
     );