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