What will help her is to get her breakover back and thus her heels back underneath her as best can be done effectively "standing her up" but doing it the right way. With horses like this, I like to trimt he toe back aggressively and use soleguard to inflate the back of the foot and help the heels unfold as I tweek them back in place. I sometimes will cast over the whole thing for a couple weeks or even more if necessary if the horse seems like he needs a bit of protection while this reorients. I don't shoe, so this is my way of correcting this without metal.
I drew because its easier. The middle red line is the center of the joint/coffin bone/widest part of the foot. You want equal length from this midline to the breakover and an equal length to the back of the heel. The blue line at the back is approx the center of the limb and where her base of support needs to get back to. This is hard to see. Basically, once you map the middle of the coffin bone, the rest of the foot should be balanced around that. The front should be equal in distance to the back or the back even greater than the toe in distance. If the toe is longer than the back of the foot, there is a problem and distortion present in the foot.
There is plenty of room to move breakover back. We don't have good pictures of the soles but this is what I see from here.
Note: my lines are just approximations.