Added ExpiringProScheduler with email for expired GabPRO users

• Added:
- ExpiringProScheduler with email for expired GabPRO users

config/locales/en.yml

@@ -1067,6 +1067,9 @@ en:
         explanation_1: Thanks for your patience. We've reviewed your request and verified your account.
         explanation_2: The proof you sent has been deleted from our servers completely.
         explanation_3: Thank you 🐸
+    pro_expired:
+      subject: Your GabPRO Membership Has Expired
+      title: Hello %{name}, your GabPRO membership has expired on %{date}.
     backup_ready:
       explanation: You requested a full backup of your Gab Social account. It's now ready for download!
       subject: Your archive is ready for download

config/locales/en_GB.yml

@@ -1000,6 +1000,9 @@ en_GB:
     setup: Set up
     wrong_code: The entered code was invalid! Are server time and device time correct?
   user_mailer:
+    pro_expired:
+      subject: Your GabPRO Membership Has Expired
+      title: Hello %{name}, your GabPRO membership has expired on %{date}.
     backup_ready:
       explanation: You requested a full backup of your Gab Social account. It's now ready for download!
       subject: Your archive is ready for download

config/sidekiq.yml

@@ -6,6 +6,9 @@
   - [mailers, 2]
   - [pull]
 :schedule:
+  expiring_pro_scheduler:
+    cron: '0 7 * * *'
+    class: Scheduler::ExpiringProScheduler
   scheduled_statuses_scheduler:
     every: '1m'
     class: Scheduler::ScheduledStatusesScheduler