Update login error message

Updating the login error message when a user enters an incorrect
username of password. This is being updated to provide a more
descriptive message to the user that can also be easily translated
in multiple languages.

Signed-off-by: Derick Montague <derick.montague@ibm.com>
Change-Id: I6d798f74cfe3968496c7c14341f3aa10ccabbe75
diff --git a/src/locales/en.json b/src/locales/en.json
index 5e544dc..b8b5465 100644
--- a/src/locales/en.json
+++ b/src/locales/en.json
@@ -133,9 +133,8 @@
     "password": "Password",
     "username": "Username",
     "alert": {
-      "title": "Invalid username or password.",
-      "action": "Please try again."
-    },
+      "title": "Invalid username or password",
+      "action": "Try again after verifying your username and password are correct.",
     "form": {
       "english": "English",
       "spanish": "Spanish"