Make replay management more convenient about shiromino

[gregorulm]

What's the issue with having an SQLite database? You'll abstract away commands for extraction/deletion in the GUI anyway.

[gregorulm]

Merging two databases would be quite straightforward in our use case here as it is safe to assume that there won't ever be two 100% identical replays. You export from one database and import the data in the other.

Isn't the situation you'd be addressing with syncthing a much different one? This ticket is about managing the replays of one user using one installation of Shiromino, isn't it?

[FelicityVi]

I've implemented a delete button for the replay menu as part of c6fba48. I agree with the original post saying that's the "MVP" feature, but once the menu code is cleaned up, we'll want to address this again to look into more and better ways of managing the replays, such as export/import functions.