Fixed two typos, so that we now only need one "Are you sure?" string when translating (#67)

FreeAPS/Sources/Modules/AddTempTarget/View/AddTempTargetRootView.swift

@@ -113,7 +113,7 @@ extension AddTempTarget {
                     .padding(.vertical)
                     .onTapGesture {
                         removeAlert = Alert(
-                            title: Text("A you sure?"),
+                            title: Text("Are you sure?"),
                             message: Text("Delete preset \"\(preset.displayName)\""),
                             primaryButton: .destructive(Text("Delete"), action: { viewModel.removePreset(id: preset.id) }),
                             secondaryButton: .cancel()

FreeAPS/Sources/Modules/Bolus/View/BolusRootView.swift

@@ -78,7 +78,7 @@ extension Bolus {
             .alert(isPresented: $isAddInsulinAlertPresented) {
                 let amount = formatter.string(from: viewModel.amount as NSNumber)! + " U"
                 return Alert(
-                    title: Text("Are your sure?"),
+                    title: Text("Are you sure?"),
                     message: Text("Add \(amount) without bolusing"),
                     primaryButton: .destructive(
                         Text("Add"),