Read the intended order of the independent variable's categories
Source:R/sorting_utils.R
get_indep_level_order.RdContent types that build their own tables rather than arranging
data_summary still need the category order the rest of the package
settled on. .indep_order is the authoritative source, because
add_indep_order() has already resolved sort_indep_by and
descend_indep into it. It is only present for categorical dependent
variables; summarize_int_cat_data() does no sorting, so a numeric
dependent variable falls back to the factor's own levels – which is what
arrange_table_data() does in the same situation.