Fix read filter accessibility labels (help)

Multiplatform/Shared/Sidebar/SidebarToolbarModifier.swift

@@ -30,7 +30,7 @@ struct SidebarToolbarModifier: ViewModifier {
 						} else {
 							AppAssets.filterInactiveImage.font(.title3)
 						}
-					}).help("Filter Read Feeds")
+					}).help(sidebarModel.isReadFiltered ? "Show Read Feeds" : "Filter Read Feeds")
 				}
 				
 				ToolbarItem(placement: .automatic) {

Multiplatform/Shared/Sidebar/SidebarView.swift

@@ -35,6 +35,7 @@ struct SidebarView: View {
 				})
 				.padding(.top, 8).padding(.trailing)
 				.buttonStyle(PlainButtonStyle())
+				.help(sidebarModel.isReadFiltered ? "Show Read Feeds" : "Filter Read Feeds")
 			}
 			ZStack {
 				NavigationLink(destination: TimelineContainerView(feeds: sidebarModel.selectedFeeds), isActive: $navigate) {

Multiplatform/Shared/Timeline/TimelineToolbarModifier.swift

@@ -10,16 +10,24 @@ import SwiftUI
 
 struct TimelineToolbarModifier: ViewModifier {
 	
+	@EnvironmentObject private var timelineModel: TimelineModel
+
 	func body(content: Content) -> some View {
 		content
 			.toolbar {
 				#if os(iOS)
 				ToolbarItem(placement: .navigation) {
-					Button(action: {
+					Button (action: {
+						withAnimation {
+							timelineModel.isReadFiltered.toggle()
+						}
 					}, label: {
-						AppAssets.filterInactiveImage
-							.font(.title3)
-					}).help("Filter Read Articles")
+						if timelineModel.isReadFiltered {
+							AppAssets.filterActiveImage.font(.title3)
+						} else {
+							AppAssets.filterInactiveImage.font(.title3)
+						}
+					}).help(timelineModel.isReadFiltered ? "Show Read Articles" : "Filter Read Articles")
 				}
 				
 				ToolbarItem {

Multiplatform/Shared/Timeline/TimelineView.swift

@@ -31,6 +31,7 @@ struct TimelineView: View {
 				})
 				.padding(.top, 8).padding(.trailing)
 				.buttonStyle(PlainButtonStyle())
+				.help(timelineModel.isReadFiltered ? "Show Read Articles" : "Filter Read Articles")
 			}
 			ZStack {
 				NavigationLink(destination: ArticleContainerView(articles: timelineModel.selectedArticles), isActive: $navigate) {