Added new options to the settings dashboard tab. (#60)

* Created developer tools dashboard

* Remove PopUp and use inline version

* Moved developer tools to the settings tab

At request of Geo

* Fixed some bugs.

* Fix Typos and flex on buttons

* Lowercased token

* Fix button styles

* Move screenshot in-house.

* Move screenshot in-house.

* Completed Developer Settings and Added features to Settings Tab.

Also fixed the about page, updated the "alpha" mention to beta.

* Update revoke-token.vue

assets/images/sidebar/devtools.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-tool"><path d="M14.7 6.3a1 1 0 0 0 0 1.4l1.6 1.6a1 1 0 0 0 1.4 0l3.77-3.77a6 6 0 0 1-7.94 7.94l-6.91 6.91a2.12 2.12 0 0 1-3-3l6.91-6.91a6 6 0 0 1 7.94-7.94l-3.76 3.76z"></path></svg>