Fix Home view showing zero counts after returning from background

onAppear only fires once when the view first appears, not on foreground
return. Add scenePhase observer to reload data when the app becomes active.

Yattee/Views/Home/HomeView.swift

@@ -9,6 +9,7 @@ import SwiftUI
 
 struct HomeView: View {
     @Environment(\.appEnvironment) private var appEnvironment
+    @Environment(\.scenePhase) private var scenePhase
     @Namespace private var sheetTransition
     @State private var playlists: [LocalPlaylist] = []
     @State private var bookmarksCount: Int = 0
@@ -117,6 +118,11 @@ struct HomeView: View {
         .onAppear {
             loadData()
         }
+        .onChange(of: scenePhase) { _, newPhase in
+            if newPhase == .active {
+                loadData()
+            }
+        }
         .task {
             await feedCache.loadFromDiskIfNeeded()
             await appEnvironment?.homeInstanceCache.loadFromDiskIfNeeded()