Add cancel button.

en.json

@@ -21,7 +21,8 @@
         "remembered": "Go back to login.",
         "new": "New to REVOLT?",
         "existing": "Already have an account?",
-        "create": "Create a new account."
+        "create": "Create a new account.",
+        "cancel": "Cancel request."
     },
     "app": {
         "status": {