Fix memory leak
X11 backend: don't set TouchpadOff to 1

When TouchpadOff is set to 1, ktouchpadenabler can't turn on the
touchpad.

BUG: 331285
Add debug output to CustomConfigDialogManager

Print widget names and values that doesn't match.
Workarounds for bug in KMessageWidget

KMessageWidget->animatedShow() causes crash if called in constructor
or load()

BUG: 331268