[Issue] F keys appear to be case sensitive

[ajpirciovs]

Describe the bug When setting up shortcuts with F1-12 keys, you must specify "F#" and not "f#"

To Reproduce Steps to reproduce the behavior: edit: /etc/g910-gkeys/config.json, use "f#" key with type shortcut

Expected behavior should be case insensitive, or example docs updated (example shows "alt+f4", adding "alt+F4". Also consider adding a comment here to make sure noobs like me are paying attention)

[ihkN]

I'd suggest to make lower or upper case all chars in the string before using it.

[suabo]

Thanks for reporting the Problem.
I will see if I can allow for case insensitive behavior at the mapping. Other ways I'll add a comment to the documentation.