Table filters missing

[KMnOFour]

Describe the bug
Table filters are missing from all the tables that should have them. Issue is a state issue that was introduced in an earlier PR. The table uses a state var to determine whether to show the headers, and that depends on a another new state var that gets set in the same method. This doesn't give the virtual dom enough time to correctly evaluate the new var before setting the original one, so it's always false.

Updated the code to use the same local variable to set both state vars so they are always in sync.