MkV BETA 2

A small update that brings replays merge since it was requested by a few people, just click the "folder with the +" button to merge different replays, both from the home page and the replays page.

Known bug: if you click the merge button from the home as the first thing when opening VS, the track map won't load, select the Replay page at least once to avoid that or click the load button instead.

Why MkV?

MkIII was a refactoring I started trying to take advantage of the acquired WPF knowledge, while working on it I had an idea about how to better organize the code structure which became MkIV. MkV is the port to Avalonia UI of MkIV.