Add alert message component and documentation

- Add custom alert component to simplify the use of custom alerts
- Add documentation for using the custom alert
- Update the login error alert to use the alert component instead of
the Bootstrap-vue component.
- Add the enhanceApp and bmcAppPlugin to extend vuepress to use both
the BMC custom and Boostrap-Vue components along with the custom styles

Signed-off-by: Derick Montague <derick.montague@ibm.com>
Change-Id: I5c0b696ca47ddba0df18041d6c5ee7509bf23572
diff --git a/src/locales/es.json b/src/locales/es.json
index 48ed774..a3e3ee0 100644
--- a/src/locales/es.json
+++ b/src/locales/es.json
@@ -16,8 +16,7 @@
     "password": "Contraseña",
     "username": "Nombre de usuario",
     "alert": {
-      "title": "Usuario o contraseña invalido.",
-      "action": "Inténtalo de nuevo."
+      "message": "Usuario o contraseña invalido"
     },
     "form": {
       "english": "Inglés",