Feature Request: Bring back multiple accounts

[LukaszH77]

I hoped that the new version of the mobile app would make it easier to switch between Pixelfed accounts, like the official Mastodon application does. Instead, multi-account support has completely disappeared in the new version.

Please restore the ability to add more than one account to the app, with an easy way to switch between them by long pressing the account icon in the lower right corner.