feat: add day-3 branded payment-failure reminder mailable

resources/views/emails/payment-failed-day-3.blade.php

@@ -0,0 +1,22 @@
+<x-mail::message>
+# Payment retry in progress
+
+Hi {{ $name }},
+
+We tried to renew your FuelAlert **{{ ucfirst($tier) }}** subscription but the
+payment didn't go through. Stripe will retry automatically over the next couple
+of days.
+
+If the card on file is out of date, please update it now so you don't lose your
+{{ ucfirst($tier) }} features:
+
+<x-mail::button :url="$portalUrl">
+    Update payment method
+</x-mail::button>
+
+If Stripe's retries succeed, you won't need to do anything — you'll just get a
+normal payment receipt.
+
+Thanks for using FuelAlert,
+The FuelAlert Team
+</x-mail::message>