fix: parsing of browserslist

[alexander-akait]

What kind of change does this PR introduce?

fixes #11876, found a lot of edge cases with tests, I think we should switch from browserslist supports feature because a lot problems, babel also keep browsers in own code and use only syntax of browserslist

WIP on more fixes

Did you add tests for your changes?

Yes

Does this PR introduce a breaking change?

No

What needs to be documented once your changes are merged?

No

[webpack-bot]

For maintainers only:

• This needs to be documented (issue in webpack/webpack.js.org will be filed when merged)
• This needs to be backported to webpack 4 (issue will be created when merged)

[sokra]

I don't want to review all this numbers, but I trust you that that's fine. If you think this is done, I'll merge it.

[alexander-akait]

Yep, let's merge, I have given comments in many places and we can always fix it in future

[vankop]

perhaps webpack needs some e2e browser testing =)

[alexander-akait]

@vankop yep, it will be great 😄

[sokra]

Thanks