Basic Models design

1. Account:
   id: number;
   username: string;
   fname: string;
   lname: string;
   profilePic: any;

1. Post:
   id: number;
   media: string;
   description: string;
   likes: number;
   dislikes: number;

1. Comment:
   id: number;
   parentId: number;
   description: string;
   likes: number;
   dislikes: number;

1. Profile:
   account: Account;
   posts: Post[];
   friends: Accounts[];
   recomendedFriends: Accounts[];