Add basic desktop UI - systray

This PR adds a basic UI for desktop
applications that support Linux, Max
and Windows.

.github/workflows/golangci-lint.yml

@@ -6,6 +6,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
+
+      - name: Install dependencies
+        run: sudo apt update && sudo apt install -y -q libgtk-3-dev libappindicator3-dev libayatana-appindicator3-dev
+
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v2