* feat: add sway-mode module
* refactor: Avoid making multiple connections to SwayIPC
Now `sway::Client` is store in `ironbar.clients`, and allow dynamically
registering event listeners, instead of hardcoding events for Workspace
updates.
Remove the use of `swayipc::Connection` from `sway-mode` module, and
replace it with the new event listener system.
#671
This does away with `lazy_static` singletons for all the clients, instead putting them all inside a `Clients` struct on the `Ironbar` struct.
Client code has been refactored in places to accommodate this, and module code has been updated to get the clients the new way.
The Wayland client has been re-written from the ground up to remove a lot of the needless complications, provide a nicer interface and reduce some duplicate data.
The MPD music client has been overhauled to use the `mpd_utils` crate, which simplifies the code within Ironbar and should offer more robustness and better recovery when connection is lost to the server.
The launcher module in particular has been affected by the refactor.
Resolves#25.
Completely refactors the MPD module to be the 'music' module. This now supports both MPD and MPRIS with the same UI for both.
BREAKING CHANGE: The `mpd` module has been renamed to `music`. You will need to update the `type` value in your config and add `player_type` to continue using MPD. You will also need to update your styles.
