Phase4: Stripe

src/messages/en.json

@@ -737,6 +737,10 @@
       "overdue": "Overdue",
       "void": "Void",
       "uncollectible": "Uncollectible"
-    }
+    },
+    "payWithCard": "Pay with card",
+    "redirectingToStripe": "Redirecting…",
+    "paymentReceived": "Payment received — thank you. The status will update once Stripe confirms (a few seconds).",
+    "paymentCancelled": "Payment was cancelled. The invoice is still open; you can try again whenever."
   }
 }