[Bug]: Can't start backup import in any database

[Rei-x]

Description

I can't click "Checkmark" and "X" button when importing a backup to database (I checked this on mariadb and postgres, chrome and firefox). There are some errors in console

Minimal Reproduction (if possible, example repository)

Try to import a backup to postgres database, then try to click on any button - it doesn't work.

Exception or Error

Version

v4.0.0-beta.265

[n3storm]

I verified this is error is happening.

ReferenceError: Dropzone is not defined

Asset is properly loaded https://cdnjs.cloudflare.com/ajax/libs/dropzone/5.9.3/dropzone.min.js

[andrasbacsai]

This will be fixed in the upcoming version.