Add miscellaneous changes to i3/config
Add miscellaneous changes to i3/config

Add some unpushed changes done to i3/config before removing the config
file entirely. In particular, this commit:

- Increases the size of window borders
- Adds a command to open a floating terminal
- Makes mpv windows float by default
- Adds an option to specify the minimum and maximum sizes for floating
  windows
- Adds an easy way to show/hide floating windows ("The Hidden Workspace")
- (Re)loads polybar when starting i3

GloverDonovan/new-start