Expose setMinimumHoldTime and setMinimumPriorInterval timings from Qukeys for tweaking home row mods

[benfrain]

Is your feature request related to a problem? Please describe.
Problem is related to tuning home row modifiers. The current implementation of Qukeys leads to issues/unwanted input with some users. Personally I get a lot of false modifiers as I type, others see letters instead of modifiers. Reported here: https://community.keyboard.io/t/how-to-have-permissive-hold-and-ignore-mod-tap-interrupt-in-kaleidoscope-firmware/4541/3 and also in the Discord more recently: https://discord.com/channels/492408953041321984/848761121182580766/1196153166341865613

Describe the solution you'd like
An drop-down/select menu labelled 'Dual use key timings' with the default value for setMinimumHoldTime and setMinimumPriorInterval. The drop-down should allow the user to choose alternative timings from, say 100, up to say 500.

Describe alternatives you've considered
At present, the only option available to users who wish to try and tweak theses timings to get better working home row mods, is to download/configure via Kaleidoscope which is quite off-putting to non-programmer users.