add trial period ending banner + server logic (#11389)

Solution : 
- if user reaches his workflow usage cap + in trial period > display
banner
- end trial period if user has payment method (if not, not possible)

<img width="941" alt="Screenshot 2025-04-04 at 10 27 32"
src="https://github.com/user-attachments/assets/d7a1d5f7-9b12-4a92-a7c7-15ef8847c790"
/>

packages/twenty-front/src/modules/billing/graphql/endSubscriptionTrialPeriod.ts

@@ -0,0 +1,10 @@
+import { gql } from '@apollo/client';
+
+export const END_SUBSCRIPTION_TRIAL_PERIOD = gql`
+  mutation EndSubscriptionTrialPeriod {
+    endSubscriptionTrialPeriod {
+      status
+      hasPaymentMethod
+    }
+  }
+`;