Version 2.0.0

What's Changed

• Update deps and fix Linux by @rpavlik in #11
• Manifest file picker/drag and drop by @rpavlik in #10
• Icons by @rpavlik in #12
• Release prep by @rpavlik in #13

Full Changelog: 1.0.0...2.0.0

(Version 1.0 was not originally tagged but was marked in the Cargo.toml file, and since we changed the API non-compatibly, the major version was bumped.)