Use user-selected accent color in Home, Subscriptions, and Downloads

Color.accentColor and .foregroundStyle(.tint) resolve to the asset
catalog accent on macOS, so Home shortcut cards, section header
links, the Subscriptions "All channels" header, and the Downloads
per-channel group headers stayed blue when the user picked a
different accent. Read the color from SettingsManager and apply it
directly, matching the pattern already used for the Play button.

Yattee/Views/Home/HomeShortcutCardView.swift

@@ -8,11 +8,16 @@
 import SwiftUI
 
 struct HomeShortcutCardView<StatusIndicator: View>: View {
+    @Environment(\.appEnvironment) private var appEnvironment
     @Environment(\.dynamicTypeSize) private var dynamicTypeSize
     #if os(tvOS)
     @Environment(\.isFocused) private var isFocused
     #endif
 
+    private var accentColor: Color {
+        appEnvironment?.settingsManager.accentColor.color ?? .accentColor
+    }
+
     let icon: String
     let title: String
     let count: Int
@@ -76,7 +81,7 @@ struct HomeShortcutCardView<StatusIndicator: View>: View {
                 VStack(alignment: .leading, spacing: 8) {
                     Image(systemName: icon)
                         .font(.title3)
-                        .foregroundStyle(.tint)
+                        .foregroundStyle(accentColor)
                         .frame(width: iconSize)
 
                     VStack(alignment: .leading, spacing: 2) {
@@ -102,7 +107,7 @@ struct HomeShortcutCardView<StatusIndicator: View>: View {
                 HStack(alignment: .center, spacing: 8) {
                     Image(systemName: icon)
                         .font(.title3)
-                        .foregroundStyle(.tint)
+                        .foregroundStyle(accentColor)
                         .frame(width: iconSize)
 
                     VStack(alignment: .leading, spacing: 2) {
@@ -136,7 +141,7 @@ struct HomeShortcutCardView<StatusIndicator: View>: View {
         .background(cardBackground)
         .overlay(
             RoundedRectangle(cornerRadius: cornerRadius)
-                .strokeBorder(Color.accentColor.opacity(0.3), lineWidth: 1)
+                .strokeBorder(accentColor.opacity(0.3), lineWidth: 1)
         )
         .clipShape(RoundedRectangle(cornerRadius: cornerRadius))
     }
@@ -159,7 +164,7 @@ struct HomeShortcutCardView<StatusIndicator: View>: View {
         #if os(tvOS)
         isFocused ? Color.white.opacity(0.2) : Color.gray.opacity(0.3)
         #else
-        Color.accentColor.opacity(0.1)
+        accentColor.opacity(0.1)
         #endif
     }
 }

Yattee/Views/Home/HomeShortcutRowView.swift

@@ -8,11 +8,17 @@
 import SwiftUI
 
 struct HomeShortcutRowView<StatusIndicator: View>: View {
+    @Environment(\.appEnvironment) private var appEnvironment
+
     let icon: String
     let title: String
     let subtitle: String
     var statusIndicator: StatusIndicator?
 
+    private var accentColor: Color {
+        appEnvironment?.settingsManager.accentColor.color ?? .accentColor
+    }
+
     init(
         icon: String,
         title: String,
@@ -29,7 +35,7 @@ struct HomeShortcutRowView<StatusIndicator: View>: View {
         HStack(spacing: 12) {
             Image(systemName: icon)
                 .font(.title3)
-                .foregroundStyle(.tint)
+                .foregroundStyle(accentColor)
                 .frame(width: 28)
 
             VStack(alignment: .leading, spacing: 2) {

Yattee/Views/Home/HomeView.swift

@@ -33,6 +33,10 @@ struct HomeView: View {
     private var dataManager: DataManager? { appEnvironment?.dataManager }
     private var settingsManager: SettingsManager? { appEnvironment?.settingsManager }
 
+    private var accentColor: Color {
+        appEnvironment?.settingsManager.accentColor.color ?? .accentColor
+    }
+
     #if !os(tvOS)
     private var downloadManager: DownloadManager? { appEnvironment?.downloadManager }
     #endif
@@ -273,7 +277,7 @@ struct HomeView: View {
             #if os(tvOS)
             Text(title)
                 .fontWeight(.semibold)
-                .foregroundStyle(Color.accentColor)
+                .foregroundStyle(accentColor)
             #else
             Button(action: action) {
                 HStack(spacing: 4) {
@@ -282,7 +286,7 @@ struct HomeView: View {
                     Image(systemName: "chevron.right")
                         .font(.caption)
                 }
-                .foregroundStyle(Color.accentColor)
+                .foregroundStyle(accentColor)
             }
             .buttonStyle(.plain)
             #endif
@@ -1291,7 +1295,7 @@ struct HomeView: View {
                     #if os(tvOS)
                     Text(verbatim: "\(contentType.localizedTitle) - \(instance.displayName)")
                         .fontWeight(.semibold)
-                        .foregroundStyle(Color.accentColor)
+                        .foregroundStyle(accentColor)
                     #else
                     Button {
                         appEnvironment?.navigationCoordinator.navigate(
@@ -1304,7 +1308,7 @@ struct HomeView: View {
                             Image(systemName: "chevron.right")
                                 .font(.caption)
                         }
-                        .foregroundStyle(Color.accentColor)
+                        .foregroundStyle(accentColor)
                     }
                     .buttonStyle(.plain)
                     #endif