修复图片压缩缩放的 bug (#521)

* 修复图片压缩缩放的 bug

Author: GyDi

src/utils/compress.ts

@@ -135,8 +135,10 @@ class Compress {
         canvas.height = height
 
         this.clear(context, width, height)
+        context.save()
         context.transform(...matrix)
         context.drawImage(img, 0, 0)
+        context.restore()
         resolve(canvas)
       })
     })