After this, there's only 12 files with ESLint errors left. I didn't fix
those because they all have at least one
`cypress/no-unnecessary-waiting` error, and I don't have enough Cypress
expertise to fix those.
* Tried to fix some tests
* Revert visibility class
* Fixed outdated code
* Fixed one code point
* Test.
* Fixed upload annotations tests
* Fixed upload tests
* Disable animation for popovers
* Removed extra class
* Removed strange check
* Pass overlayStyle from HOC to child Popover
* Cypress. Update case 14. "Selected opacity" slider now defines opacity level of shapes being drawn
* Apply comments
* Update test for opencv
* Added check for polygon