Description

A recent PR sent to a project asked to update babel (and so dependent plugins/eslint) to fix a build problem on mac.
We should port this Version update on MapStore core.

Trying to do it, we have several errors in eslint (due to old bugs of eslint not revealing some items) alrady notified in the past by @MV88 (see this and this

This issue want to propose an update strategy for it, as easy as possible.