fix: db/schema.rb changes requested to doubtfire-lms#565

Author: SteveDala

db/schema.rb

@@ -208,6 +208,13 @@
     t.index ["user_id"], name: "index_marking_sessions_on_user_id"
   end
 
+  create_table "notifications", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
+    t.integer "user_id"
+    t.string "message"
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+  end
+
   create_table "overseer_assessments", charset: "utf8mb4", collation: "utf8mb4_general_ci", force: :cascade do |t|
     t.bigint "task_id", null: false
     t.string "submission_timestamp", null: false