Added translations 🌎

ref #113

src/locales/en.json

@@ -438,5 +438,12 @@
   "paid": "PAID",
   "open": "OPEN",
   "already-paid": "Already paid",
-  "unpaid": "Unpaid"
+  "unpaid": "Unpaid",
+  "enter-payment": "Enter payment",
+  "add-or-update-a-payment": "Add or update a payment",
+  "you-can-enter-the-donations-paid-amount-manually-or-use-the-max-button-to-use-the-donations-exact-amount": "You can enter the donation's paid amount manually or use the MAX button to use the donation's exact amount.",
+  "payment-amount-must-be-greater-than-0-00eur": "Payment amount must be greater than 0.00€!",
+  "donation-updated": "Donation updated",
+  "updating-donation": "Updating donation",
+  "donation-deleted": "Donation deleted"
 }