feature: Ask for playback type when media is downloaded (#361)

Co-authored-by: PartyDonut <PartyDonut@users.noreply.github.com>

lib/models/playback/playback_options_dialogue.dart

@@ -0,0 +1,57 @@
+import 'package:flutter/material.dart';
+
+import 'package:fladder/models/video_stream_model.dart';
+import 'package:fladder/screens/shared/adaptive_dialog.dart';
+import 'package:fladder/util/localization_helper.dart';
+
+Future<PlaybackType?> showPlaybackTypeSelection({
+  required BuildContext context,
+  required Set<PlaybackType> options,
+}) async {
+  PlaybackType? playbackType;
+
+  await showDialogAdaptive(
+    context: context,
+    builder: (context) {
+      return PlaybackDialogue(
+        options: options,
+        onClose: (type) {
+          playbackType = type;
+          Navigator.of(context).pop();
+        },
+      );
+    },
+  );
+  return playbackType;
+}
+
+class PlaybackDialogue extends StatelessWidget {
+  final Set<PlaybackType> options;
+  final Function(PlaybackType type) onClose;
+  const PlaybackDialogue({required this.options, required this.onClose, super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Column(
+      mainAxisSize: MainAxisSize.min,
+      crossAxisAlignment: CrossAxisAlignment.stretch,
+      children: [
+        Padding(
+          padding: const EdgeInsets.symmetric(horizontal: 16).add(const EdgeInsets.only(top: 16, bottom: 8)),
+          child: Text(
+            context.localized.playbackType,
+            style: Theme.of(context).textTheme.titleLarge,
+          ),
+        ),
+        const Divider(),
+        ...options.map((type) => ListTile(
+              title: Text(type.name(context)),
+              leading: Icon(type.icon),
+              onTap: () {
+                onClose(type);
+              },
+            ))
+      ],
+    );
+  }
+}