Fix crash when using cbz export on iOS and macOS.

Close #164

pubspec.lock

@@ -1094,10 +1094,10 @@ packages:
     dependency: "direct main"
     description:
       name: zip_flutter
-      sha256: fe63ef9098bb2426b001adba2e28029820d71ce80cce957a36676bd6b3227245
+      sha256: bbf3160062610a43901b7ebbc6f6dd46519540f03a84027dc7b1fff399dda1ac
       url: "https://pub.dev"
     source: hosted
-    version: "0.0.9"
+    version: "0.0.10"
 sdks:
   dart: ">=3.6.0 <4.0.0"
   flutter: ">=3.27.3"

pubspec.yaml

@@ -48,7 +48,7 @@ dependencies:
   sliver_tools: ^0.2.12
   flutter_file_dialog: ^3.0.2
   file_selector: ^1.0.3
-  zip_flutter: ^0.0.9
+  zip_flutter: ^0.0.10
   lodepng_flutter:
     git:
       url: https://github.com/venera-app/lodepng_flutter