Credit subscriptions (#4575)

* Implement subscription crediting

* chore: query cache, clippy, fmt

* Improve code, improve query for next open charge

* chore: query cache, clippy, fmt

* Move server ID copy button up

* Node + region crediting

* Make it less ugly

* chore: query cache, clippy, fmt

* Bugfixes

* Fix lint

* Adjust migration

* Adjust migration

* Remove billing change

* Move DEFAULT_CREDIT_EMAIL_MESSAGE to utils.ts

* Lint

* Merge

* bump clickhouse, disable validation

* tombi fmt

* Update cargo lock

apps/frontend/src/templates/emails/index.ts

@@ -18,6 +18,7 @@ export default {
 
 	// Subscriptions
 	'subscription-tax-change': () => import('./account/SubscriptionTaxChange.vue'),
+	'subscription-credited': () => import('./account/SubscriptionCredited.vue'),
 
 	// Moderation
 	'report-submitted': () => import('./moderation/ReportSubmitted.vue'),