Merge branch 'persistentReview' into 'main'

App/event36/app/src/main/java/com/example/event36/Event.java

...c/main/java/com/example/event36/EventRestoSuperClass.java

...6/app/src/main/java/com/example/event36/MainActivity.java

App/event36/app/src/main/java/com/example/event36/Model.java

...pp/src/main/java/com/example/event36/PersistentModel.java

...pp/src/main/java/com/example/event36/RatingAndReview.java

...t36/app/src/main/java/com/example/event36/Restaurant.java

...src/main/java/com/example/event36/RestaurantActivity.java

.../app/src/main/java/com/example/event36/ReviewAdapter.java

...app/src/main/java/com/example/event36/UserlessReview.java