Fix ContentUnavailableView centering on Apple TV

On tvOS, ContentUnavailableView inside a Group doesn't expand to fill
available space — it sizes to content and aligns top-leading. Add
.frame(maxWidth: .infinity, maxHeight: .infinity) to all instances
so they center correctly in their parent containers.

Yattee/Views/Settings/ContributorsView.swift

@@ -47,6 +47,7 @@ struct ContributorsView: View {
                 }
                 .buttonStyle(.borderedProminent)
             }
+            .frame(maxWidth: .infinity, maxHeight: .infinity)
         } else {
             contributorsList
         }

Yattee/Views/Settings/ImportPlaylistsView.swift

@@ -138,6 +138,7 @@ struct ImportPlaylistsView: View {
             }
             .buttonStyle(.bordered)
         }
+        .frame(maxWidth: .infinity, maxHeight: .infinity)
         .accessibilityIdentifier(AccessibilityID.errorMessage)
     }
 
@@ -147,6 +148,7 @@ struct ImportPlaylistsView: View {
             systemImage: "list.bullet.rectangle",
             description: Text(String(localized: "import.playlists.emptyDescription"))
         )
+        .frame(maxWidth: .infinity, maxHeight: .infinity)
         .accessibilityIdentifier(AccessibilityID.emptyState)
     }
 

Yattee/Views/Settings/ImportSubscriptionsView.swift

@@ -109,6 +109,7 @@ struct ImportSubscriptionsView: View {
             }
             .buttonStyle(.bordered)
         }
+        .frame(maxWidth: .infinity, maxHeight: .infinity)
         .accessibilityIdentifier(AccessibilityID.errorMessage)
     }
 
@@ -118,6 +119,7 @@ struct ImportSubscriptionsView: View {
             systemImage: "person.2.slash",
             description: Text(String(localized: "import.subscriptions.emptyDescription"))
         )
+        .frame(maxWidth: .infinity, maxHeight: .infinity)
         .accessibilityIdentifier(AccessibilityID.emptyState)
     }
 

Yattee/Views/Settings/LegacyDataImportView.swift

@@ -38,6 +38,7 @@ struct LegacyDataImportView: View {
                     systemImage: "doc.questionmark",
                     description: Text(String(localized: "migration.noDataFoundDescription"))
                 )
+                .frame(maxWidth: .infinity, maxHeight: .infinity)
             } else {
                 importContent
             }

Yattee/Views/Settings/LogViewerView.swift

@@ -109,6 +109,7 @@ struct LogViewerView: View {
                         Text(String(localized: "settings.advanced.logs.disabled"))
                     }
                 }
+                .frame(maxWidth: .infinity, maxHeight: .infinity)
             } else {
                 List(loggingService.filteredEntries) { entry in
                     LogEntryRow(entry: entry)

Yattee/Views/Settings/NetworkShareDiscoverySheet.swift

@@ -81,6 +81,7 @@ struct NetworkShareDiscoverySheet: View {
                                 service.startDiscovery()
                             }
                         }
+                        .frame(maxWidth: .infinity, maxHeight: .infinity)
                     }
                 } else {
                     // Group shares by type
@@ -124,6 +125,7 @@ struct NetworkShareDiscoverySheet: View {
             } description: {
                 Text(String(localized: "discovery.unavailable.description"))
             }
+            .frame(maxWidth: .infinity, maxHeight: .infinity)
         }
     }
 

Yattee/Views/Settings/NotificationSettingsView.swift

@@ -182,6 +182,7 @@ struct ManageChannelNotificationsView: View {
                 } description: {
                     Text(errorMessage)
                 }
+                .frame(maxWidth: .infinity, maxHeight: .infinity)
             } else if subscriptions.isEmpty {
                 ContentUnavailableView {
                     Label(
@@ -191,6 +192,7 @@ struct ManageChannelNotificationsView: View {
                 } description: {
                     Text(String(localized: "settings.notifications.noSubscriptions.description"))
                 }
+                .frame(maxWidth: .infinity, maxHeight: .infinity)
             } else {
                 ForEach(subscriptions, id: \.channelID) { subscription in
                     ChannelNotificationToggle(subscription: subscription)

Yattee/Views/Settings/PeerTubeInstancesExploreView.swift

@@ -117,12 +117,14 @@ struct PeerTubeInstancesExploreView: View {
                 }
                 .buttonStyle(.borderedProminent)
             }
+            .frame(maxWidth: .infinity, maxHeight: .infinity)
         } else if displayedInstances.isEmpty {
             ContentUnavailableView {
                 Label(String(localized: "peertube.explore.noResults"), systemImage: "magnifyingglass")
             } description: {
                 Text(String(localized: "peertube.explore.noResults.description"))
             }
+            .frame(maxWidth: .infinity, maxHeight: .infinity)
         } else {
             instancesList
         }

Yattee/Views/Settings/PlayerControls/ButtonConfigurationView.swift

@@ -72,6 +72,7 @@ struct ButtonConfigurationView: View {
                 String(localized: "settings.playerControls.buttonNotFound"),
                 systemImage: "exclamationmark.triangle"
             )
+            .frame(maxWidth: .infinity, maxHeight: .infinity)
         }
     }
 

Yattee/Views/Settings/PlayerControls/MiniPlayerEditorView.swift

@@ -283,6 +283,7 @@ struct MiniPlayerButtonConfigurationView: View {
                 String(localized: "settings.playerControls.buttonNotFound"),
                 systemImage: "exclamationmark.triangle"
             )
+            .frame(maxWidth: .infinity, maxHeight: .infinity)
         }
     }
 

Yattee/Views/Settings/PlayerControls/PillButtonConfigurationView.swift

@@ -41,6 +41,7 @@ struct PillButtonConfigurationView: View {
                 String(localized: "settings.playerControls.buttonNotFound"),
                 systemImage: "exclamationmark.triangle"
             )
+            .frame(maxWidth: .infinity, maxHeight: .infinity)
         }
     }
 

Yattee/Views/Settings/SourcesListView.swift

@@ -90,6 +90,7 @@ struct SourcesListView: View {
             }
             .buttonStyle(.borderedProminent)
         }
+        .frame(maxWidth: .infinity, maxHeight: .infinity)
         .accessibilityIdentifier("sources.view")
     }
 

Yattee/Views/Settings/TranslationContributorsView.swift

@@ -30,6 +30,7 @@ struct TranslationContributorsView: View {
             ContentUnavailableView {
                 Label(String(localized: "settings.translators.empty"), systemImage: "globe")
             }
+            .frame(maxWidth: .infinity, maxHeight: .infinity)
         } else {
             contributorsList
         }