Add strings.

en.json

@@ -84,6 +84,14 @@
                     "import_theme": "Import theme from string.",
                     "theme_data": "Theme Data"
                 },
+                "notifications": {
+                    "title": "Notifications",
+                    "enable_desktop": "Enable Desktop Notifications.",
+                    "enable_sound": "Play Sound on Message."
+                },
+                "language": {
+                    "title": "Language"
+                },
                 "logOut": "Log Out"
             }
         },