[Bug] Game attempts to load partially copied zip files

[snepsnepsnep]

Originally opened on https://github.com/BeamMP/BeamMP/issues/434 The game attempts to load partially copied zip files, which throws the errors in the issue above. A fix would be copying the files to a temp file (eg. .tmp, a file the game will ignore ), which can then be renamed to a zip after it's done copying. Will do further testing to confirm this behavior.