Refactor navigation component

We are anticipating necessary customizations to the app
navigation for different environments.
This refactoring will allow for a more programmatic approach.
By abstracting the navigation into a JS object we can leverage
the Vue mixin to isolate customizations while sharing a
standard template and styles.

There may be slight changes to data-test-id-* hooks.

Signed-off-by: Yoshie Muranaka <yoshiemuranaka@gmail.com>
Change-Id: I0d095acfee29cfdd4ce1094b860d754f45dc6db9
diff --git a/src/locales/en-US.json b/src/locales/en-US.json
index de6dfce..2d69a7b 100644
--- a/src/locales/en-US.json
+++ b/src/locales/en-US.json
@@ -125,7 +125,7 @@
     "snmpSettings": "SNMP settings",
     "sslCertificates": "SSL certificates",
     "unauthorized": "Unauthorized",
-    "virtualMedia": "Virtual Media"
+    "virtualMedia": "Virtual media"
   },
   "pageChangePassword": {
     "changePassword": "Change password",