added burger menu with admin page and user invitation link generation

src/baby_monitor/models/db/user.py

@@ -1,6 +1,6 @@
 """Database models."""
 
-from sqlalchemy import Column, Integer, String, DateTime
+from sqlalchemy import Column, Integer, String, DateTime, Boolean
 from datetime import datetime
 
 from baby_monitor.repositories.dependencies.get_database import Base
@@ -14,6 +14,7 @@ class User(Base):
     id = Column(Integer, primary_key=True, index=True)
     username = Column(String, unique=True, index=True, nullable=False)
     hashed_password = Column(String, nullable=False)
+    is_admin = Column(Boolean, default=False, nullable=False)
     created_at = Column(DateTime, default=datetime.utcnow, nullable=False)
 
     def __repr__(self) -> str: