locales: zap button raw and rounded

src/locales/en.json

@@ -1643,5 +1643,7 @@
   "zap.comment_input.placeholder": "Optional comment",
   "zap.open_wallet": "Open Wallet",
   "zap.send_to": "Send zaps to {target}",
-  "zap.unit": "Zap amount in sats"
-}
+  "zap.unit": "Zap amount in sats",
+  "zap.button.text.rounded": "Zap {amount}K sats",
+  "zap.button.text.raw": "Zap {amount} sats"
+}