Unable to add new members to team

[canadaduane]

Description

When trying to add a member to the team, the drop-down does not autosuggest anyone, and therefore I cannot add anyone to the team.

I can confirm that the request is being made--in the network tab the /api/v1/users?s=[query] call is being made, but the response is always null, even when I type the initial letters of a team member that I know is in the system (for example, when I removed "ava" from the team, then tried to add her back, typing "a" or "av" or "ava" does not autosuggest her user).

Vikunja Frontend Version

0.20.0

Vikunja API Version

0.20.0

Browser and version

Firefox 106.0.1

Can you reproduce the bug on the Vikunja demo site?

Yes

Screenshots