Log user ID in Moderation -> Logs

[D3XX3R]

I'm using the logging function of Chatterino all the time and the only feature missing for it is logging user IDs.
If a user changes it's name it's hard to retrace it's old names and messages attached to it. But if the logs would contain the user ID it would be easier to search for old messages written by said user.

[Felanbird]

#1799