i10n for extension version display

lang/en-US.json

@@ -260,6 +260,8 @@
   "empty": "Empty",
   "extensions": "Extensions",
   "extensions_use_toggle": "Use the browser extension to send requests (if present)",
+  "extension_version": "Extension Version",
+  "extension_ver_not_reported": "Not Reported",
   "extensions_info1": "Browser extension that simplifies access to Postwoman",
   "extensions_info2": "Get Postwoman browser extension!",
   "installed": "Installed",

pages/settings.vue

@@ -131,12 +131,10 @@
       </ul>
       <ul class="info">
         <li v-if="extensionVersion != null">
-          Extension Verison: v{{ extensionVersion.major }}.{{ extensionVersion.minor }}
+          {{ $t("extension_version") }}: v{{ extensionVersion.major }}.{{ extensionVersion.minor }}
         </li>
 
-        <li v-else>
-          Extension Verison: Not Reported
-        </li>
+        <li v-else>{{ $t("extension_version") }}: {{ $t("extension_ver_not_reported") }}</li>
       </ul>
     </pw-section>