Fix Disconsolate Merc crash

[mqrause]

Summary

Bugfixes "Fix Disconsolate Merc crash"

Purpose of change

Partially fixes #60938

Describe the solution

The crash is caused by outdated info on visible monsters when the forced redraw option is enabled and the compass widget tries to access the already removed npc. This adds a call to update the monster info before redrawing.

Describe alternatives you've considered

Figure out which order all the stuff happens in and find a way to shuffle things around without adding another call. That's probably not possible, though.
Or remove the force redraw option because it also causes other isses (#58795). But that obviously has more implications.

Testing

Load the save and walk north. To cause a crash both the "force redraw" option and the compass widget have to be enabled. With this fix there won't be a crash even with them enabled.

Additional context

http://files.catbox.moe/oevx9t.zip
Thanks @RenechCDDA for providing the save.

[I-am-Erk]

Do we still get the crash if you give him a debug invisibility trait, prior to running the EOC?

[mqrause]

Assuming that'd happen at the same point during turn processing, I don't think that would change anything. Plus it would mean actually figuring out the involved json and/or EOC code and fiddling around with it.

[I-am-Erk]

I would still like it tested but I am okay with merging this to fix the issue. THe underlying code still needs a fix at some point so I think we should call this a partial fix, not complete.