#1334 (modern widget)

- A small performance tweak: don't load stories if a preview with some content already.

clients/ios/Widget Extension/WidgetExtension.swift

@@ -25,6 +25,10 @@ struct Provider: TimelineProvider {
     func getTimeline(in context: Context, completion: @escaping (Timeline<Entry>) -> ()) {
         cache.loadCachedStories()
         
+        if context.isPreview && !cache.stories.isEmpty {
+            return
+        }
+        
         cache.load {
             var entries: [SimpleEntry] = []