Cleanup

Merged Mark Wagie requested to merge cleanup into master
  • remove obsolete layouts,assets, defs and functions
  • rename classic layout to traditional
  • rename modern layout to manjaro
  • rename tiling layout to material_shell
  • traditional_layout: remove obsolete arc-menu-placement key
  • traditonal_layout: correct arcmenu distro-icon key to '3'
  • remove unneeded policy file

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