Add toggle in host app for pre cache

Author: intitni

Copilot for Xcode/DebugView.swift

@@ -5,6 +5,8 @@ import SwiftUI
 final class DebugSettings: ObservableObject {
     @AppStorage(\.disableLazyVStack)
     var disableLazyVStack: Bool
+    @AppStorage(\.preCacheOnFileOpen)
+    var preCacheOnFileOpen: Bool
     init() {}
 }
 
@@ -18,6 +20,10 @@ struct DebugSettingsView: View {
                     Text("Disable LazyVStack")
                 }
                 .toggleStyle(.switch)
+                Toggle(isOn: $settings.preCacheOnFileOpen) {
+                    Text("Cache editor information on file open")
+                }
+                .toggleStyle(.switch)
             }
         }.buttonStyle(.copilot)
     }