Inspections settings ui: tools not initialized if no necessity to apply inspections filter
generic debugger settings: step 3 — root settings (Debugger node content)

at first, JS debugger root settings transformed
cleanup
fix inset: VerticalFlowLayout incorrectly uses vertical gap as top inset
Prevent NPE in AbstractPopup and add corresponding logging
IDEA-127679 ArrayIndexOutOfBoundsException if no default or focused button is specified