Extension Version is reported on the settings page

pages/settings.vue

@@ -129,6 +129,15 @@
           </div>
         </li>
       </ul>
+      <ul class="info">
+        <li v-if="extensionVersion != null">
+          Extension Verison: v{{ extensionVersion.major }}.{{ extensionVersion.minor }}
+        </li>
+
+        <li v-else>
+          Extension Verison: Not Reported
+        </li>
+      </ul>
     </pw-section>
 
     <pw-section class="blue" :label="$t('proxy')" ref="proxy">
@@ -210,6 +219,7 @@
 <script>
 import firebase from "firebase/app"
 import { fb } from "~/helpers/fb"
+import { hasExtensionInstalled } from "../helpers/strategies/ExtensionStrategy"
 
 export default {
   components: {
@@ -299,6 +309,10 @@ export default {
         },
       ],
 
+      extensionVersion: hasExtensionInstalled()
+        ? window.__POSTWOMAN_EXTENSION_HOOK__.getVersion()
+        : null,
+
       settings: {
         SCROLL_INTO_ENABLED:
           typeof this.$store.state.postwoman.settings.SCROLL_INTO_ENABLED !== "undefined"