Hide non-working external links in tvOS settings

tvOS cannot open URLs in a browser, so the Community section
(GitHub/Discord) is omitted and Acknowledgements dependencies
render as plain text rather than tappable buttons.

Yattee/Views/Settings/AboutView.swift

@@ -13,12 +13,14 @@ struct AboutView: View {
 
     var body: some View {
         Form {
+            #if !os(tvOS)
             Section {
                 communityLink("GitHub", icon: "github", url: "https://github.com/yattee/yattee")
                 communityLink("Discord", icon: "discord", url: "https://yattee.stream/discord")
             } header: {
                 Text(String(localized: "settings.about.community"))
             }
+            #endif
 
             Section {
                 NavigationLink {

Yattee/Views/Settings/AcknowledgementsView.swift

@@ -26,7 +26,11 @@ struct AcknowledgementsView: View {
         #endif
     }
 
+    @ViewBuilder
     private func dependencyLink(_ name: String, url: String) -> some View {
+        #if os(tvOS)
+        Text(name)
+        #else
         Button {
             if let url = URL(string: url) {
                 openURL(url)
@@ -39,6 +43,7 @@ struct AcknowledgementsView: View {
                     .foregroundStyle(.secondary)
             }
         }
+        #endif
     }
 }