Use QuantityFormatter to format unit strings

Author: gestrich

LoopUI/Charts/CarbEffectChart.swift

@@ -187,7 +187,7 @@ extension CarbEffectChart {
     /// - Parameter effects: A timeline of glucose velocity values
     public func setInsulinCounteractionEffects(_ effects: [GlucoseEffectVelocity]) {
         let unit = glucoseUnit.unitDivided(by: .minute())
-        let unitString = String(format: NSLocalizedString("%1$@/min", comment: "Format string describing glucose units per minute (1: glucose unit string)"), glucoseUnit.localizedShortUnitString)
+        let unitString = String(format: NSLocalizedString("%1$@/min", comment: "Format string describing glucose units per minute (1: glucose unit string)"), glucoseUnit.shortLocalizedUnitString())
 
         var insulinCounteractionEffectPoints: [ChartPoint] = []
         var allCarbEffectPoints: [ChartPoint] = []

LoopUI/Charts/IOBChart.swift

@@ -110,7 +110,7 @@ public extension IOBChart {
         iobPoints = iobValues.map {
             return ChartPoint(
                 x: ChartAxisValueDate(date: $0.startDate, formatter: dateFormatter),
-                y: ChartAxisValueDoubleUnit($0.value, unitString: Self.chartUnit.localizedShortUnitString, formatter: doseFormatter)
+                y: ChartAxisValueDoubleUnit($0.value, unitString: Self.chartUnit.shortLocalizedUnitString(), formatter: doseFormatter)
             )
         }
     }