This commit not only sets up the build for windows on jenkins,
it also consolidates how we get prebuilt binaries for native modules i.e. keytar and better-sqlite3
and generally has some refactorings
Split dist.js (desktop.js, webapp.js)
Simplify command line interface for dist builds
Extract utilities used from dist builds
Extract fetching and publishing dictionaries into its own build step
Extract signing installers into its own build step
Extract .deb packaging and publishing into its own build step
Add some documentation, verbosity and general improvements to the code
We can only specify flavor in F-Droid metadata so that's what we do to
avoid specifying signing (F-Droid manages the signing on its own).
We now also run tests on new JDK. We needed to update Robolectric to do
that.
