fix+feat(everything): lot of things

backend/models/__init__.py

@@ -1,7 +1,7 @@
 from .user import User
 from .event import Event, EventParticipation
 from .album import Album, Media, MediaLike
-from .post import Post, PostMention
+from .post import Post, PostMention, PostLike, PostComment
 from .vlog import Vlog, VlogLike, VlogComment
 from .notification import Notification
 from .settings import SystemSettings
@@ -17,6 +17,8 @@ __all__ = [
     "MediaLike",
     "Post",
     "PostMention",
+    "PostLike",
+    "PostComment",
     "Vlog",
     "VlogLike",
     "VlogComment",