v1.2.0

As `libappindicator` is sort of deprecated, this app switches over to
`libayatana-appindicator` instead. This will allow this module to work
with newer versions of Ubuntu.

Some more cleanup (#6)

Merge pull request #10 from dawidd6/dependabot-go_modules-github.com-…

…gotk3-gotk3-0.5.0

build(deps): bump github.com/gotk3/gotk3 from 0.4.0 to 0.5.0

Merge pull request #9 from dawidd6/update-gotk

update gotk