iOS 15 buggy ProgressView temp fix

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

@@ -19,7 +19,7 @@ extension Bolus {
                         HStack {
                             Text("Wait please").foregroundColor(.secondary)
                             Spacer()
-                            ProgressView()
+                            ActivityIndicator(isAnimating: .constant(true), style: .medium) // fix iOS 15 bug
                         }
                     } else {
                         HStack {
@@ -102,3 +102,17 @@ extension Bolus {
         }
     }
 }
+
+// fix iOS 15 bug
+struct ActivityIndicator: UIViewRepresentable {
+    @Binding var isAnimating: Bool
+    let style: UIActivityIndicatorView.Style
+
+    func makeUIView(context _: UIViewRepresentableContext<ActivityIndicator>) -> UIActivityIndicatorView {
+        UIActivityIndicatorView(style: style)
+    }
+
+    func updateUIView(_ uiView: UIActivityIndicatorView, context _: UIViewRepresentableContext<ActivityIndicator>) {
+        isAnimating ? uiView.startAnimating() : uiView.stopAnimating()
+    }
+}