wrong color icon for "assign to me" action for card

[alexanderdd]

How to use GitHub

• Please use the 👍 reaction to show that you are affected by the same issue.
• Please don't comment if you have no relevant information to add. It's just extra noise for everyone subscribed to this issue.
• Subscribe to receive notifications on status change and new comments.

To Reproduce
Steps to reproduce the behavior:

1. open a card
2. click top right ...-menu

Expected behavior
icon should be black

NC "31.0.0 RC5"
c.nc.com
let me know if u need more details

[enjeck]

fixed at #8093