docs: user docstrings

Issue: #13

src/user/dependencies.py

@@ -1,13 +1,10 @@
 """
-Router dependencies for user module
+Dependencies related to the user module
 
-Classes:
- - List: Description
- - Classes: Description
-
-Functions:
- - List: Description
- - Functions: Description
+Exports:
+ - user_model_claims_dependency: user_model: Gets user model from db, if it exists. Uses db_id from user claims.
+ - user_model_query_dependency: user_model: Gets user model from db, if it exists. Uses user_id from query param
+ - user_model_body_dependency: user_model: Gets user model from db, if it exists. Uses user_id from request body.
 """
 from typing import Annotated
 from fastapi import Depends, Query