Update babel and eslint

[offtherailz]

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.

[offtherailz]

(goint to report my findings soon @tdipisa

[offtherailz]

@tdipisa please see my proposed solution here:
#10006

I think it can be reviewed. I preferred to finalize the PR right now that I'm on the problem. As well as my PR is approved by the team I can proceed publishing the eslint config lib on npm and make the build pass.

[tdipisa]

@tdipisa please see my proposed solution here: #10006

I think it can be reviewed. I preferred to finalize the PR right now that I'm on the problem. As well as my PR is approved by the team I can proceed publishing the eslint config lib on npm and make the build pass.

@offtherailz let's discuss briefly before