bad indent for math equation

```

#import "@preview/physica:0.9.0": *
#import "@preview/ctheorems:1.1.2": thmrules, thmbox


#let problem = thmbox(
  "problem",
  "Solution to Problem",
)
#show: thmrules

#problem("1")[
  $
    pdv(,t)braket(phi.alt (t), psi(t))=hbar / i
    mel(
    phi.alt(t),
    (-H^dagger (hat(x),hat(p), t)+H(hat(x),hat(p),t))
    ,psi(t)
  ),
  $
]
```