fixes (dark reader breaks things)

Author: ianharrigan

haxe/ui/backend/ComponentImpl.hx

@@ -700,7 +700,9 @@ class ComponentImpl extends ComponentBase {
 
     @:access(haxe.ui.core.Screen)
     private override function getComponentOffset():Point {
-        return new Point(Screen.instance.pageRoot(element).offsetLeft, Screen.instance.pageRoot(element).offsetTop);
+        return new Point(0, 0);
+        // ill concieved?
+        //return new Point(Screen.instance.pageRoot(element).offsetLeft, Screen.instance.pageRoot(element).offsetTop);
     }
 
     @:access(haxe.ui.core.Screen)

haxe/ui/backend/html5/util/StyleSheetHelper.hx

@@ -15,10 +15,17 @@ class StyleSheetHelper {
 
         var sheet:CSSStyleSheet = null;
         for (test in Browser.document.styleSheets) {
+            if (test.ownerNode == null || test.disabled == true) {
+                continue;
+            }
             var css = cast(test, CSSStyleSheet);
             if (css.ownerNode.nodeName == "STYLE" && css.href == null) {
-                sheet = css;
-                break;
+                try {
+                    var r = css.cssRules;
+                    sheet = css;
+                    break;
+                } catch (e:Dynamic) {
+                }
             }
         }