wx+Windows Tests: RuntimeError: wrapped C/C++ object has been deleted

[gselzer]

Looks like wx tests are now reporting many errors on teardown on Windows only. Never noticed this on CI until I got the same error locally:

Traceback (most recent call last):
  File "C:\Users\gjselzer\code\pyapp-kit\ndv\src\ndv\views\_wx\_array_view.py", line 682, in update_lut_scroll_size
    self.luts_scroll.Layout()
RuntimeError: wrapped C/C++ object of type ScrolledWindow has been deleted
Traceback (most recent call last):
  File "C:\Users\gjselzer\code\pyapp-kit\ndv\src\ndv\views\_wx\_array_view.py", line 682, in update_lut_scroll_size
    self.luts_scroll.Layout()
RuntimeError: wrapped C/C++ object of type ScrolledWindow has been deleted
Traceback (most recent call last):
  File "C:\Users\gjselzer\code\pyapp-kit\ndv\src\ndv\views\_wx\_array_view.py", line 682, in update_lut_scroll_size
    self.luts_scroll.Layout()
RuntimeError: wrapped C/C++ object of type ScrolledWindow has been deleted

Seems pretty harmless (i.e. doesn't happen in practice & doesn't actually cause crashes), but not a bad idea to fix anyways. I can take a look since I'm guessing it's easier for me than @tlambert03 @gnodar01

[tlambert03]

thanks! Yeah, looks somewhat similar to what caused me to add

ndv/src/ndv/views/_wx/_array_view.py

Lines 195 to 196 in fceccb1

	with suppress(RuntimeError): # if we quit with dialog open, it's deleted...
	self._popup.Show(show=False)

i'm not a pro on wx cleanup yet, but would be great to review stuff and make sure we're connecting and parenting everything properly for the wx paradigms