2.8.2

a620a3f Update Electron to 12.0.2
3e5c116 Build Debian packages too
89221a6 Use GH Actions as the only CI
db6d976 Allow mailto links to be opened externally
5c49372 Enhancements to make it more Mac App Store (mas) compatible
9b09a4b Switch mac build to universal build
b41de51 README: explain why remote control was disabled
ce2243d Document working CSP