opt image preview

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

lib/models/common/image_preview_type.dart

@@ -1,5 +1,3 @@
-import 'package:PiliPlus/common/constants.dart';
-
 enum SourceType { fileImage, networkImage, livePhoto }
 
 class SourceModel {
@@ -8,6 +6,7 @@ class SourceModel {
   final String? liveUrl;
   final int? width;
   final int? height;
+  final bool isLongPic;
 
   const SourceModel({
     this.sourceType = SourceType.networkImage,
@@ -15,12 +14,6 @@ class SourceModel {
     this.liveUrl,
     this.width,
     this.height,
+    this.isLongPic = false,
   });
-
-  bool get isLongPic {
-    if (width != null && height != null) {
-      return height! / width! > StyleString.imgMaxRatio;
-    }
-    return false;
-  }
 }