The only use of it left was to generate RSA keys, this has now been
implemented in the dart-go-git library, even though that's probably not
the right place for it.
Platform from dart:io cannot be used on the web for reasons. And this
way we get a fake File/Directory class which we can use for atleast
running the web version, even if it won't work.
At some point I'll figure out how to do this with Dart only code, but
till then lets just call the process.
GitJournal can also no longer run in a sandbox as it needs to access the
ssh-keygen executable.
Also for handling the latest dart-git. This required disabling -
* ssh_key - Feature toggle (off by default) for generating the ssh key
in dart. This was causing problems.
* screenshots
* flutter_driver - used by screenshots
flutter_driver was nice to have as it was the only proper integration
test that we have.
Also, many of the tests currently fail because of problems with Sentry.
I prefer to fix those in another commit
This changes the way the SSH keys are managed, they are no longer
managed by the git_bindings plugin and are instead just passed as
parameters. They are now saved in shared_prefs. This allows us to easily
have multiple ssh keys.
It also allows us to store the ssh keys in a more secure storage
location in the future.
