Fix frequent KFImage hang

Changelog-Fixed: Fix some hangs when scrolling by images
Closes: #614

damus/Components/ImageCarousel.swift

@@ -231,10 +231,10 @@ struct ImageCarousel: View {
                         KFAnimatedImage(url)
                             .callbackQueue(.dispatch(.global(qos: .background)))
                             .processingQueue(.dispatch(.global(qos: .background)))
+                            .cancelOnDisappear(true)
+                            .backgroundDecode()
                             .cacheOriginalImage()
-                            .loadDiskFileSynchronously()
                             .scaleFactor(UIScreen.main.scale)
-                            .fade(duration: 0.1)
                             .configure { view in
                                 view.framePreloadCount = 3
                             }

damus/Views/BannerImageView.swift

@@ -33,15 +33,15 @@ struct InnerBannerImageView: View {
                     .processingQueue(.dispatch(.global(qos: .background)))
                     .serialize(by: imageModel.serializer)
                     .setProcessor(imageModel.processor)
+                    .cacheOriginalImage()
                     .configure { view in
-                        view.framePreloadCount = 1
+                        view.framePreloadCount = 3
                     }
                     .placeholder { _ in
                         Color(uiColor: .secondarySystemBackground)
                     }
                     .scaleFactor(UIScreen.main.scale)
                     .loadDiskFileSynchronously()
-                    .fade(duration: 0.1)
                     .onFailureImage(defaultImage)
                     .id(imageModel.refreshID)
             } else {

damus/Views/ProfilePicView.swift

@@ -70,19 +70,20 @@ struct InnerProfilePicView: View {
             KFAnimatedImage(imageModel.url)
                 .callbackQueue(.dispatch(.global(qos: .background)))
                 .processingQueue(.dispatch(.global(qos: .background)))
+                .cancelOnDisappear(true)
+                .backgroundDecode()
                 .serialize(by: imageModel.serializer)
                 .setProcessor(imageModel.processor)
                 .cacheOriginalImage()
+                .scaleFactor(UIScreen.main.scale)
                 .configure { view in
-                    view.framePreloadCount = 1
+                    view.framePreloadCount = 3
                 }
                 .placeholder { _ in
                     Placeholder
                 }
-                .scaleFactor(UIScreen.main.scale)
+                .onFailure { error in
-                .loadDiskFileSynchronously()
+                    if error.isTaskCancelled { return }
-                .fade(duration: 0.1)
-                .onFailure { _ in
                     imageModel.downloadFailed()
                 }
                 .id(imageModel.refreshID)