Create administration dashboard

[Venefilyn]

Marking this help-wanted as it is not something repo contributors will actively pursue at this time.

To make lives easier for everyone, having an administration dashboard to directly change the server config for all servers Valkyrja is on would make it easier to help people out from admin and support point-of-view.

Ideally this should only be allowed by Valkyrja admins and support, where support can only read config but not write.

May be possible to utilize Laravel Telescope that is coming soon.

Back-end

• Authorize by checking new database table with Discord ID and it's permission level, where level 0 would be Valkyrja owner. This table would only contain people who can access administration panel.

Front-end

• Display searchable dropdown for selecting server to edit, as well as displaying a tab for logs to display logged entries.

Other items that could exist in the administration dashboard is the ability to edit Markdown files in project's /updates folder, add/remove blacklisted users, displaying Botwinder bot logs from database, as well as managing CRUD for subscribers.