implement #21

fix lint errors

add status indicator

remove delete originals + ui enhancements

use the coss ui button group and empty components in the app; add an action directly in the history to convert images to different formats.

allow format conversion during compression

Merge pull request #13 from bittere/feat/multi-folder-watcher-1388190…

…8080811976582

Select custom folders to be watched + general improvements

Merge pull request #7 from bittere/feat/close-to-tray-178485431657196…

…39405

Implement Close-to-Tray with Background Notification

fix app not opening

add more formats

update readme