Move to using inline todos, update .dockerignore, and remove duplicate timezone records in seed data

backend/notifications/models.py

@@ -1,11 +1,17 @@
+from django.core.cache import cache
 from django.db import models
 
 
 class Notification(models.Model):
-    recipient = models.ForeignKey("accounts.CustomUser", on_delete=models.CASCADE)
+    recipient = models.ForeignKey(
+        "accounts.CustomUser", on_delete=models.CASCADE)
     content = models.CharField(max_length=1000, null=True)
     timestamp = models.DateTimeField(auto_now_add=True, editable=False)
     dismissed = models.BooleanField(default=False)
 
     def __str__(self):
         return self.content
+
+    def save(self, **kwargs):
+        cache.delete(f"notifications_user:{self.recipient.id}")
+        super().save(**kwargs)