AngelPuss is adorable!! I think her little misallignments add to her appeal really!
With regard to AP's jaw allignment what it looks like to me is that her nose is torqued so I think the misallignment may start higher up. Has she had a cranial facial xray done? She has one nare that is more enlarged than the other it appears.
What I wonder about with AP is what in human medicine is called Midline defects. Sometimes defects that are apparent (like midline in the face) are indicative of other midline defects that aren't apparent such as cardiac and major arteries, other end organs.
Not to scare you at all just the kind of think I "wonder" about when I look at Angel. A Vet would most likely put all my "wonderments" to rest very quickly tho as you can see I tend to use human medicine as a starting point when trying to figure out things feline and canine. Often I'm wrong
If you're measuring Angel's normal growth and function and she seems to be improving with her mentation and physical agility versus what she looks like is probably of less consequence as she would appear to be functioning better and more normally for a kitten her age. Hope the rest will soon blow over or she will outgrow it. Either way she is loved and cared for and has a great companion in Smush!