Implemented a Reddit-like account suspension system (similar to subreddit bans). This makes it easier to ban users from the app, and the code has also been cleaned up.
The interface was also revamped.
This commit removes unused language files and preserves the English sources for Crowdin. The account confirmation page has also been re-skinned with the current login/register template.
Some missing translations for 2fa were also added to the main messages file.
Sources for translations for the menus were also added.
