feat: add models part 2

itd/models/comment.py

@@ -1,11 +1,13 @@
 from pydantic import Field
 
 from itd.models._text import TextObject
+from itd.models.user import UserPost
 
 
-class CommentShort(TextObject):
+class Comment(TextObject):
     likes_count: int = Field(0, alias='likesCount')
     replies_count: int = Field(0, alias='repliesCount')
     is_liked: bool = Field(False, alias='isLiked')
 
-    replies: list['CommentShort'] = []
+    replies: list['Comment'] = []
+    reply_to: UserPost | None = None # author of replied comment, if this comment is reply