Update models.py again for Flake8 compliancy

Author: KushPatel-18

server/inventory/models.py

@@ -1,8 +1,8 @@
 # Create your models here.
-# this is the db models 
+# this is the db models
 # you can have multiple tables here
 # whenever you make changes here do this
-# python manage.py makemigrations   
+# python manage.py makemigrations
 # python manage.py migrate
 
 from django.db import models
@@ -34,4 +34,4 @@ class InventoryItem(models.Model):
     dateAdded = models.DateTimeField(auto_now_add=True)
 
     def __str__(self):
-        return self.name
+        return self.name