Fix microphone privacy config (#727)

ios-swiftui/SherpaOnnx/SherpaOnnx/Info.plist

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict/>
+</plist>

ios-swiftui/SherpaOnnx/SherpaOnnx/SherpaOnnxViewModel.swift

@@ -13,6 +13,7 @@ enum Status {
     case recording
 }
 
+@MainActor
 class SherpaOnnxViewModel: ObservableObject {
     @Published var status: Status = .stop
     @Published var subtitles: String = ""
@@ -44,9 +45,7 @@ class SherpaOnnxViewModel: ObservableObject {
     }
 
     func updateLabel() {
-        DispatchQueue.main.async {
-            self.subtitles = self.results
-        }
+        self.subtitles = self.results
     }
 
     init() {