Refactor and add legal links to payment pages, change contribute view's layout

Toki Trainer/Models/TransactionObserver.swift

@@ -1,5 +1,5 @@
 //
-//  Store.swift
+//  TransactionObserver.swift
 //  Toki Trainer
 //
 //  Created by Madeline Pace on 12/18/23.
@@ -82,7 +82,6 @@ final class TransactionObserver: ObservableObject {
     }
 
     func processSubscription(_ productID: String) {
-        // TODO: Write function
         print("Subscription ID: \(productID)")
         switch productID {
         case K.MonthlyTransactions.TierOne: