Set the scroll indicator offsets on the webview

This prevents the scroll from bouncing when we scroll to the top
we should figure out how to query for the system navigation
bar size and use that instead of hard coding 50.

apple/OmnivoreKit/Sources/Views/Article/WebAppView.swift

@@ -35,6 +35,7 @@ import WebKit
       webView.backgroundColor = UIColor.clear
       webView.configuration.userContentController = contentController
       webView.scrollView.delegate = context.coordinator
+      webView.scrollView.scrollIndicatorInsets = UIEdgeInsets(top: 50, left: 0, bottom: 0, right: 0)
 
       for action in WebViewAction.allCases {
         webView.configuration.userContentController.add(context.coordinator, name: action.rawValue)