HowTo: Hide the bar until ⊞ Win is pressed

1. Stage your own i3 config file and open ~/.config/regolith/i3/config in your editor of choice.
2. After the line bar {, add the following entry: mode hide. (See here for details)
3. Reload i3 with ⊞ Win-shift-r.

_{If you would like this to be easier to change, please vote for this issue}