fix ReactWebViewPackage kotlin filename (facebook#4403)

Author: kwj280

docs/fabric-native-components-android.md

@@ -401,7 +401,7 @@ public class ReactWebViewPackage extends BaseReactPackage {
 </TabItem>
 <TabItem value="kotlin">
 
-```kotlin title="Demo/android/src/main/java/com/webview/ReactWebView.kt"
+```kotlin title="Demo/android/src/main/java/com/webview/ReactWebViewPackage.kt"
 package com.webview
 
 import com.facebook.react.BaseReactPackage

website/versioned_docs/version-0.76/fabric-native-components-android.md

@@ -401,7 +401,7 @@ public class ReactWebViewPackage extends TurboReactPackage {
 </TabItem>
 <TabItem value="kotlin">
 
-```kotlin title="Demo/android/src/main/java/com/webview/ReactWebView.kt"
+```kotlin title="Demo/android/src/main/java/com/webview/ReactWebViewPackage.kt"
 package com.webview
 
 import com.facebook.react.TurboReactPackage