Issue 49999 - Integrate React structure into cockpit-389-ds
Description: Refactor the existing 389-console Cockpit plugin structure
so it uses React, Babel, Eslint.
Add Makefile targets and refactor spec-file accordingly.
Add python3-policycoreutils, npm and nodejs to BuildRequires.
Put blank Plugins page which work in React and uses Cockpit API.
Reviewed by: mreynolds, vashirov, mhonek (Thanks!)
https://pagure.io/389-ds-base/issue/49999