[NTG-context] formula alignment for mathalign

Hi, The `align` parameter of `\setupformulas` is ignored in mathalign. Consider the following MWE: \setupformulas[align=flushleft,leftmargin=2em] \starttext \startformula A = B \stopformula vs \startformula \startalign \NC A \NC B \NR \NC A \NC B \NR \stopalign \stopformula \stoptext The first display formula is flush left, but the aligned formula is centered on the page. This appears to be a regression compared to MkIV, where the above example works correctly. Aditya