gui: Update lang-en.json

gui/default/assets/lang/lang-en.json

@@ -154,6 +154,8 @@
    "Scanning": "Scanning",
    "Select the devices to share this folder with.": "Select the devices to share this folder with.",
    "Select the folders to share with this device.": "Select the folders to share with this device.",
+   "Send \u0026 Receive": "Send \u0026 Receive",
+   "Send Only": "Send Only",
    "Settings": "Settings",
    "Share": "Share",
    "Share Folder": "Share Folder",