Update ViewDebug (#180)

* Update EnvironmentHelper

* Update View documentation

* Fix animationsDisabled

* Update ViewDebug

* Update ViewDebug serialize data

Author: Kyle-Ye

Sources/OpenSwiftUI/App/AppGraph.swift

@@ -26,7 +26,7 @@ package final class AppGraph: GraphHost {
     }
 
     private lazy var launchProfileOptions = LaunchProfileOptions(
-        rawValue: EnvironmentHelper.int32(for: "OPENSWIFTUI_PROFILE_LAUNCH")
+        rawValue: EnvironmentHelper.int32(for: "OPENSWIFTUI_PROFILE_LAUNCH") ?? 0
     )
 
     var didCollectLaunchProfile: Bool = false

Sources/OpenSwiftUICore/Graph/GraphInputs.swift

@@ -144,7 +144,7 @@ public struct _GraphInputs {
 
     package var animationsDisabled: Bool {
         get { options.contains(.animationsDisabled)  }
-        set { options.formUnion(.animationsDisabled) }
+        set { options.setValue(newValue, for: .animationsDisabled) }
     }
 
     package var needsStableDisplayListIDs: Bool {

Sources/OpenSwiftUICore/Util/EnvironmentHelper.swift

@@ -17,10 +17,10 @@ import WASILibc
 
 package enum EnvironmentHelper {
     @_transparent
-    package static func int32(for key: String) -> Int32 {
+    package static func int32(for key: String) -> Int32? {
         key.withCString { string in
             guard let env = getenv(string) else {
-                return 0
+                return nil
             }
             return atoi(env)
         }