MonitorControl v3.1.0

Enhancements

• Add a setting to control the function of F14 / F15 keys, this defines if they should be used as alternate brightness keys or not (Thanks to @vtns, @koyama-tadayoshi) (#602)
• Updated/Added French, Italian, Japanese, German, Chinese, Dutch translations
  (Thanks to @matteo-pupa, @Xilorole, @kaeferfreund, @womeimingzi11, @stijneikelboom, @ww24)

Notes

• This is a smaller, stable release, v4.0.0 is already in development (see #596), with another huge amount of features. We're going to be starting another round of beta releases in the future to make sure v4.0.0 is stable and easy-to-use before fully releasing it.
• Thanks to everyone who helped testing, contributed and donated! It really helps a lot!