avoid split packages

[overheadhunter]

As already discussed in the context of #9 and #31:

[...] Please consider using a package namespace that you have sole control over, as org.gnome.* and org.freedesktop.* etc will lead to split packages in the post-Java-8 modular world.

Convention would be for Maven group/artifact, Java module name and root package name to match.

I would suggest to move those packages to de.swiesend.secretservice.gnome.* and de.swiesend.secretservice.freedesktop.* respectively.

Since this is a breaking change, it should be considered before releasing 2.0.0.

Together with #37 and #31 you would then be ready to add a module-info.java (I would volunteer to create a PR).

[swiesend]

Should be closed by #40.

2.0.0-alpha is released.

[purejava]

I tested 2.0.0-alpha with latest Cryptomator and it works fine without issues.

For testing purposes I created two vaults, saved the passwords in the keyring with a locked and an unlocked keyring, changed the password for a vault and let Cryptomator forget it. And I dismissed the unlock keyring pop-up.

Just a minor note: waiting 2 minutes on the unlock keyring pop-up dismissed it correctly. On my Fedora 38, this crashed gnome-keyring, but as this is a daemon, it restarted and that did not harm the Cryptomator functionality in any way.

LGTM. As the package names in integrations-linux changed and just altering the Maven artifact version isn't enough, I'll create a PR for integrations-linux.