Enhance download notifications and settings; add support for live activities

- Updated notification body to use proper German quotation marks for download failure alerts.
- Refactored audio interruption handling in PlayerEngine to utilize MainActor.assumeIsolated for better performance.
- Introduced nonisolated properties for support and downloads directories in ProgressSyncManager.
- Improved FullHistoryView and MainView with additional toolbar items and alerts for download failures.
- Added new toggles in SettingsView for parallel downloads and mobile data usage.
- Created new color assets for the DownloadWidgetExtension and updated widget appearance.
- Implemented Info.plist for DownloadWidgetExtension to support widget functionality.
- Enabled live activities support in iOS Info.plist.

ABS Client/DownloadWidgetExtension/DownloadLiveActivityWidget.swift

@@ -15,7 +15,7 @@ struct DownloadLiveActivityWidget: Widget {
                 // Expanded region shown when the user long-presses the island
                 DynamicIslandExpandedRegion(.leading) {
                     Image(systemName: "arrow.down.circle.fill")
-                        .foregroundStyle(.blue)
+                        .foregroundStyle(.green)
                         .font(.title2)
                 }
                 DynamicIslandExpandedRegion(.center) {
@@ -27,29 +27,32 @@ struct DownloadLiveActivityWidget: Widget {
                 DynamicIslandExpandedRegion(.bottom) {
                     VStack(spacing: 4) {
                         ProgressView(value: context.state.progress)
-                            .tint(.blue)
+                            .tint(.green)
                         HStack {
                             Text(bytesFormatted(context.state.bytesDownloaded))
                                 .font(.caption2)
                                 .foregroundStyle(.secondary)
+                                .contentTransition(.numericText())
                             Spacer()
                             Text(percentFormatted(context.state.progress))
                                 .font(.caption2.bold())
                                 .monospacedDigit()
+                                .contentTransition(.numericText())
                         }
                     }
                 }
             } compactLeading: {
                 Image(systemName: "arrow.down.circle.fill")
-                    .foregroundStyle(.blue)
+                    .foregroundStyle(.green)
                     .font(.caption)
             } compactTrailing: {
                 Text(percentFormatted(context.state.progress))
                     .font(.caption2.bold())
                     .monospacedDigit()
+                    .contentTransition(.numericText())
             } minimal: {
                 Image(systemName: "arrow.down.circle.fill")
-                    .foregroundStyle(.blue)
+                    .foregroundStyle(.green)
                     .font(.caption2)
             }
         }
@@ -65,7 +68,7 @@ struct DownloadLockScreenView: View {
         VStack(alignment: .leading, spacing: 8) {
             HStack(spacing: 8) {
                 Image(systemName: "arrow.down.circle.fill")
-                    .foregroundStyle(.blue)
+                    .foregroundStyle(.green)
                 Text(context.attributes.itemTitle)
                     .font(.subheadline.bold())
                     .lineLimit(1)
@@ -73,12 +76,14 @@ struct DownloadLockScreenView: View {
                 Text(percentFormatted(context.state.progress))
                     .font(.subheadline.bold())
                     .monospacedDigit()
+                    .contentTransition(.numericText())
             }
             ProgressView(value: context.state.progress)
-                .tint(.blue)
+                .tint(.green)
             Text(bytesFormatted(context.state.bytesDownloaded) + " heruntergeladen")
                 .font(.caption)
                 .foregroundStyle(.secondary)
+                .contentTransition(.numericText())
         }
         .padding()
     }