feat(socialnetwork): enhance folder and video management with user visibility options

- Added functionality to manage selected users for adult folders and erotic videos, allowing for more granular visibility control.
- Introduced new endpoints and methods in the SocialNetworkController and SocialNetworkService to handle selected users.
- Updated the frontend components to include input fields for selected users in CreateFolderDialog, EditImageDialog, and EroticPicturesView.
- Enhanced the routing to support fetching erotic folders and videos by username, improving user experience in profile views.

backend/models/index.js

@@ -25,6 +25,8 @@ import ImageVisibilityUser from './community/image_visibility_user.js';
 import FolderImageVisibility from './community/folder_image_visibility.js';
 import ImageImageVisibility from './community/image_image_visibility.js';
 import FolderVisibilityUser from './community/folder_visibility_user.js';
+import EroticVideoImageVisibility from './community/erotic_video_image_visibility.js';
+import EroticVideoVisibilityUser from './community/erotic_video_visibility_user.js';
 import GuestbookEntry from './community/guestbook.js';
 import DiaryHistory from './community/diary_history.js';
 import Diary from './community/diary.js';
@@ -179,6 +181,8 @@ const models = {
   FolderImageVisibility,
   ImageImageVisibility,
   FolderVisibilityUser,
+  EroticVideoImageVisibility,
+  EroticVideoVisibilityUser,
   GuestbookEntry,
   DiaryHistory,
   Diary,