Faster, more accurate, and now in 13 languages.

• Now in Arabic, German, Spanish, French, Hebrew, Indonesian, Italian,
  Japanese, Portuguese, Russian, Turkish and Chinese — with proper
  right-to-left layouts.
• Fixed Fuel Mileage conversions between km/L and L/100 km, which returned the
  wrong figure for any input other than 1.
• Fixed results being mangled on devices using a comma as the decimal separator.
• Corrected several units: a duplicated quart, swapped gas and liquid flow
  values, and seven currencies that silently converted at 1:1.
• Currency rates now show when they were last updated.
• Purchases rebuilt on StoreKit 2 — restores are faster and more reliable.
• Added a privacy consent flow, and a privacy options entry in Settings.