Find closest accessible color

[T04435]

Is your feature request related to a problem? Please describe.
No way to solve the fail compliance check

Describe the solution you'd like
When compliance fails on any range(Normal/Large => AA/AAA)

Add an action to find closes color to fix it, IE click on Normal AAA, that gives me a menu to find closest compliant color

Describe alternatives you've considered
Manually find another color

Additional context

[superhighfives]

Thanks for taking the time to open this, @T04435.

This is a super cool idea, and the general question has come up a couple of times (like in #65 (comment) and #94). I think this ties into a suite of enhancements that I'd love to make but that I don't have the bandwidth to implement and maintain.

Currently Pika is very un-opinionated, and only represents the colours that the user picks. More complex colour management is out of scope for this app (and there are a couple of apps that already do a great job like Sip and Color Slurp).

I'd love to one day be able to dedicate the kind of time required, and I'm open to checking out PR's if anyone wants to take a pass at it. Thanks again for taking the time to make the suggestion.