What is the library for creating a "desktop" with widgets that can be moved, changed, etc.?

Question

Vue.js

In general, you need either to make a "desktop" with widgets, similar to those in Bitrix or WordPress.
That is, there is a certain area, there is a set of widgets that most likely need to be done by yourself. And in this area you can move, delete, add new widgets to this area.
Xs how to find one or because even xs how it is called in English.
Bitrix example:

Answer 1

SortableJS
https://github.com/SortableJS/Vue.Draggable