Hello. How I can override module view with new front-end extension? Should I edit core files for it?
Yes. You can edit core files for override module view.
I don’t think the correct way to do it is that. Editing core files will just get you in a situation where upgrades will potentially break your customizations.
There is some documentation here about the correct way to do it:
Though a lot more documentation is still needed.
Make sure you check out the section “New Dev Package” here:
That’s why I wrote here about my problem, I’ve already had all those packages, read all new docs but still facing this problem. I think a lot of people are facing this issue too and don’t writing about it.