Feature/user photo storage (#877)

* add default assets for user profile

* add recipe avatar

* change user_id to UUID

* add profile image upload

* setup image cache keys

* cleanup tests and add image tests

* purge user data on delete

* new user repository tests

* add user_id validator for int -> UUID conversion

* delete depreciated route

* force set content type

* refactor tests to use temp directory

* validate parent exists before createing

* set user_id to correct type

* update instruction id

* reset primary key on migration

mealie/db/init_db.py

@@ -39,7 +39,9 @@ def main():
     db = get_database(session)
 
     try:
-        init_user = db.users.get("1", "id")
+        init_user = db.users.get_all()
+        if not init_user:
+            raise Exception("No users found in database")
     except Exception:
         init_db(db)
         return