No_group_avatar.png link

Hi,

When we create a group and don't upload an avatar, we have a link to https://gitlab.com/groups/no_group_avatar.png. But, the link to groups are like https://gitlab.com/groups/{Group name}.

So, when we create a group and we don't upload an avatar, we have a link to a group which the name is no_group_avatar.png.

To test, I have create a group with this name and, it works : clicking the default avatar on any group, the new page loaded is the page of the group no_group_avatar.png.

Possible fixes

1. Remove the link
2. Correct the link (it must point to https://gitlab.com/assets/no_group_avatar-a3560bced20dec94f9cc5431019a5d95.png)

thanks for all guys :)