add notifications settings

lib/account_configs.rb

@@ -1,6 +1,19 @@
 # frozen_string_literal: true
 
 module AccountConfigs
+  REMINDER_DURATIONS = {
+    'one_hour' => '1 hour',
+    'two_hours' => '2 hours',
+    'four_hours' => '4 hours',
+    'eight_hours' => '8 hours',
+    'twelve_hours' => '12 hours',
+    'twenty_four_hours' => '24 hours',
+    'two_days' => '2 days',
+    'four_days' => '4 days',
+    'eight_days' => '8 days',
+    'fifteen_days' => '15 days'
+  }.freeze
+
   module_function
 
   def find_or_initialize_for_key(account, key)