Create potential fix for crash

When removing walkins the app is still crashing due to binds in grid's
combox.  This is a workaround.
Remove case/walkin from system before assigning new
[#63401356] Supress rack colors.
[#63401356] Change clarifications.
Merge remote-tracking branch 'origin/67917214-WalkinCrash' into develop
[#63401356] Improve row sizing.
Merge remote-tracking branch 'origin/67917214-WalkinCrash' into develop