custom show fs screenshot btn

Closes #1103

Signed-off-by: bggRGjQaUbCoE <githubaccount56556@proton.me>

lib/plugin/pl_player/controller.dart

@@ -326,6 +326,7 @@ class PlPlayerController {
   late final reverseFromFirst = Pref.reverseFromFirst;
   late final horizontalPreview = Pref.horizontalPreview;
   late final showDmChart = Pref.showDmChart;
+  late final showFsScreenshotBtn = Pref.showFsScreenshotBtn;
 
   late final bool autoExitFullscreen = Pref.autoExitFullscreen;
   late final bool autoPlayEnable = Pref.autoPlayEnable;

lib/plugin/pl_player/view.dart

@@ -1611,7 +1611,7 @@ class _PLVideoPlayerState extends State<PLVideoPlayer>
           ),
 
         // 截图
-        if (isFullScreen)
+        if (isFullScreen && plPlayerController.showFsScreenshotBtn)
           ViewSafeArea(
             left: false,
             child: Obx(
@@ -1656,6 +1656,8 @@ class _PLVideoPlayerState extends State<PLVideoPlayer>
                                         shape: const RoundedRectangleBorder(),
                                         content: GestureDetector(
                                           onTap: () async {
+                                            Get.back();
+
                                             String name = DateTime.now()
                                                 .toString();
                                             final SaveResult result =
@@ -1668,7 +1670,6 @@ class _PLVideoPlayerState extends State<PLVideoPlayer>
                                                 );
 
                                             if (result.isSuccess) {
-                                              Get.back();
                                               SmartDialog.showToast(
                                                 '$name.png已保存到相册/截图',
                                               );