Switch from systray to tray-item package

[DanielVoogsgerd]

This does a minimal change from the systray package to the tray-item package. The implementation can still be cleaned up a bit, but let's check first how well this works.

The implementation drops libappindicator support and switches to KSNI on Linux.

I'm not against the inclusion of the libappindicator support, however I think this would need a GTK event loop.

I tested this on waybar, and it seems to work for me. Furthermore, I think the old implementation did not work on Windows and macOS, this one might.

~fix~see also: #6

EDIT: Changed the fix reference to see also, as it does not entirely fix this issue. It just makes it easier to implement it.

[jonhoo]

I'd also love to hear from someone who can test this on X with an X tray (like polybar). I don't know if there's support for things like KSNI there?

[DanielVoogsgerd]

This also drops support for the right-click menu with the "Quit" option, but I think that's probably okay.

I did not realise that was in there, I think I can add it back with this package as well.

Otherwise, this looks nice and straightforward! I'm trying to decide whether this warrants a major version bump or not... It feels like maybe it does?

I'd say it's a grey area, not much a user can do from a maintenance perspective. If you were to bump the version, I'd suggest we first check for some other things that might warrant a major version bump as well.

For example, my other PR is implemented in a backward compatible way right now, but I'd say it's nicer to change the config a bit, the same goes for a change like: #6, which I still think is an improvement structurewise.

[jonhoo]

Yep, agreed, let's go ahead and make some of those config changes in a new release too!

[DanielVoogsgerd]

I am completely swamped right now, but probably have some time over the holidays to get the changes in.

[jonhoo]

Released as 1.7.0-rc.3 :tada: