Just released Flotilla 1.5.3 — this is a bugfix release, but I did add a space edit form which allows you to set your relay's name, description, and icon via NIP 86 (if your relay supports it).
Full changelog:
* Add space edit form
* Improve room syncing
* Return better blossom errors
* Fix access restricted bugs
* Add room detail dialog
* Fix broken link to self hosting
* Tweak shadows
* Always join spaces when visiting them