1. 本地EHViewer画廊现在在详情页会展示为已下载状态
2. 修复移动端保存画廊gif图片的bug
3. 修复阅读本地画廊时未保存阅读进度的bug

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1. Now local EHViewer gallery will be displayed with downloaded status in detail page
2. Fix the bug with saving .gif for mobile platform.
3. Fix the bug with not saving reading progress for local gallery.