spatial

• Fix workspaces not being correctly re-arranged on some occasions: when it had lost focus due to a window being moved to another workspace, or when one of its window had been closed while it was not focused.
• Introduce status_bar_name <name> command to specify which status bar to signal when the windows arrangement is updated (was previously hard-coded to waybar).
• Support i3.

spatialblock

• Rewrite the helper in OCaml, to enjoy (way) better performances leading to a smoother UX.
• Allow to dynamically associate applications ids with icons using a dedicated configuration file (either $XDG_CONFIG_HOME/spatial/spatialblock.json or $HOME/.config/spatial/spatialblock.json).