i3: update to 4.18.1.

  • Move parent nodes in scratchpad correctly
  • i3bar: Call cont_child() more liberally
  • Fix load_layout crash when floating node doesn't have CT_FLOATING_CON parent
  • Fix SEGFAULT when i3bar receives invalid input
  • Revert "floating_reposition: avoid extra tree_render"
  • Call tree_render if floating move changes workspace
  • Update EWMH properties on workspace move
  • cmd_focus_sibling: Fix crash on workspace level

(wiz)