Beautifier breaks adds space in underscore seperated number

[Centipede5]

Description

when you use the "_" character to break up numbers in JavaScript, the Beautifier breaks adds a space before the _ which causes an error if you try to run it

Input

The code looked like this before beautification:

var x = 100_000

Expected Output

The code should have looked like this after beautification:

var x = 100_000

Actual Output

The code actually looked like this after beautification:

var x = 100 _000

Steps to Reproduce

use any broken-up number in the beautifier

Environment

OS: Windows (any?)

Settings

[bitwiseman]

See #1836 and the related PR #1844.
The work is done, just need to verify and merge it.