change config directory on linux to $HOME/.config/livesplitone/

[NinjaFB]

The most commonly used config directory on linux is $HOME/.config/projectname, this project uses $HOME/.local/share/projectname, I don't think this makes sense at all.

To change this I used config_local_dir instead of data_local_dir from the directories crate.

This will NOT change the Windows or Mac directories.

[AlexKnauth]

This does change the Windows directory. Before this change, the config file was at

C:\Users\Owner\AppData\Local\LiveSplit\LiveSplit One\data\config.yml

but after this change, it would be at

C:\Users\Owner\AppData\Local\LiveSplit\LiveSplit One\config\config.yml

[AlexKnauth]

Also, this directory is used for more than just configuration data. The log.txt file is put in the same directory, and at least on Windows, the config file is also used for "recent items" data beyond the current configuration.