feat: add jumpy hunks to a seperate qflist & qflist QoL updates

[LOTaher]

As I tee myself up for #12, I wanted to add some better QoL changes to the current implementation of the quickfix functionality we have. The two main changes are:

• Accepting and rejecting hunks automatically refreshes the qf list and stale hunks can no longer be navigated to
• <leader>q now creates a jumpy specific qflist instead of clearing the existing one, so users can manage multiple lists at once (see recording below).
  • I think this opens the project up to more potential exciting features. ie: if jumpy has a search (perhaps something like 99's search()) function, we can have it create a different qf list then jumpy:hunks, lets say jumpy:search, and now this becomes an incredible way to navigate both hunks and searches, each with their own functionalities. All you'd need to do is bind colder and cnewer to jump between them.

Recording:

https://youtu.be/p3ErJICR7pI

[cachebag]

LGTM! BTW @LOTaher you should start making your branches directly off this repo since you have access now. Makes it easier for me to review your changes so I don't have to checkout a fork branch

[LOTaher]

Oops yeah sure thing!