ImageBox update

Recently, the sudden increase in traffic has been used to relocate and stabilize the server.

• The animation GIF is automatically changed to Webp.
  (In case of a browser that doesn't support Webp, the original GIF is output)
• The upload capacity has been increased to 32MB.
• When uploading, the program bar is displayed.

When you find a problem during use, please leave it in the question bbs and we will take quick action.