Use News overlay resources

osu.Game/Overlays/News/NewsHeader.cs

@@ -42,7 +42,7 @@ public NewsHeaderBackground()
             [BackgroundDependencyLoader]
             private void load(TextureStore textures)
             {
-                Texture = textures.Get(@"Headers/changelog"); //using changelog bg until corresponding osu-resources pr is merged.
+                Texture = textures.Get(@"Headers/news");
             }
         }
 
@@ -61,6 +61,8 @@ public NewsHeaderTitle()
                 IsReadingArticle = false;
             }
 
+            protected override Drawable CreateIcon() => new ScreenTitleIcon(@"Icons/news");
+
             [BackgroundDependencyLoader]
             private void load(OsuColour colours)
             {