Remove the "Amount in selected currency" and "Currency for this
income/expense" helper lines on both forms, drop the Reference helper
line, and mark the field as "Reference (optional)" in the label
instead. Also drops the now-unused FormDescription import from the
income form.
Fold the description guidance into the placeholder and drop the
separate FormDescription helper line, so the income Description field
mirrors the expense form's structure.
Append the same "Other" account guidance to the income form's Step 1
(libra.income.selectAccount) that the expense form already shows, for
consistency. Updated across en / fr / es locales.
Wrap the Amount and Currency fields in a two-column grid on both the
expense (AddExpense.vue) and income (AddIncome.vue) forms, and add
w-full to the currency SelectTrigger so the dropdown fills its column.
Tightens the vertical layout of the entry dialogs.
