Compatible with Nextcloud Hub 10 (31.0.0)

[Hoxolotl]

Installed solid app on a clean Nextcloud docker image, it complained about incompatibility with "the current version",

turns out I have Nextcloud Hub 10 (31.0.0)

After overriding the error it installed fine. Maybe update the compatibility?

[Potherca]

This should be resolved when #178 is merged.