Update swiss_pc_shortcuts.json
Update swiss_pc_shortcuts.json

Hi, I modified the file as some key mapping did not work on my G413 Carbon Mechanical Gaming Keyboard with Swiss German layout on OSX 10.13.6 and others were missing. Specifically I did the following changes: 
    - corrected '}' as it did not work on my keyboard
    - added '´' mapping
    - added '\' mapping

Hope it can help others.
pqrs-org/KE-complex_modifications,pqrs-org/KE-complex_modifications,pqrs-org/KE-complex_modifications,pqrs-org/KE-complex_modifications,pqrs-org/KE-complex_modifications,pqrs-org/KE-complex_modifications