Christmas Update

What's Changed

• Added Dutch translation by @Vistaus in #18
• Fix Download progress bar not being responsive
• Fix grey screen error when Applications directory was not there in the home folder
• Update sidebar and other parts of UI to match closer with libadwaita, next version will feature improved ViewSwitcher and popup menu
• Fix Browse button not working (You still need zenity for this to work)

New Contributors

• @Vistaus made their first contribution in #18

Full Changelog: 4.4.0...4.9.0