feat: add notification UI

showPopup was also refactored to be better

migrations/0051_add-notification-tables.up.sql

@@ -0,0 +1,15 @@
+CREATE TABLE notification_object (
+  notification_object_id uuid PRIMARY KEY DEFAULT uuid_generate_v4(),
+  entity_id uuid NOT NULL,
+  action_type int NOT NULL,
+  actor_id uuid NOT NULL,
+  entity_type int NOT NULL,
+  created_on timestamptz NOT NULL
+);
+
+CREATE TABLE notification (
+  notification_id uuid PRIMARY KEY DEFAULT uuid_generate_v4(),
+  notification_object_id uuid REFERENCES notification_object(notification_object_id) ON DELETE CASCADE,
+  notifier_id uuid NOT NULL REFERENCES user_account(user_id) ON DELETE CASCADE,
+  read boolean NOT NULL DEFAULT false
+);