fix(linter): Fix false errors for numeric separators (underscores, eg: 2_000_000)

[Shubhashish-Chakraborty]

Fixes #3709

Problem: The code linter (JSHint) was incorrectly flagging valid ES2021 numeric separators (e.g., 1_000_000) as syntax errors. This resulted in red underlines and "Unexpected '_'" messages in the editor, even though the syntax is valid and supported in modern JavaScript.

Changes:

• I wrapped the standard linter function (CodeMirror.lint.javascript) to act as a "middleman." This allows your code to catch the error report before it gets sent to the editor interface.
• I added logic that checks the actual code for numeric separators (using the regex /\d+_\d+/). If found, it specifically filters out "unexpected token" or "underscore" errors, ensuring only real syntax errors are shown to the user.

I have verified that this pull request:

• has no linting errors (npm run lint)
• has no test errors (npm run test)
• is from a uniquely-named feature branch and is up to date with the develop branch.
• is descriptively named and links to an issue number, i.e. Fixes #123
• meets the standards outlined in the accessibility guidelines

[Shubhashish-Chakraborty]

The Review is pending for a long time, why is it taking so much time..??
by the way the issue is fixed, so just waiting for y'all approval..
@raclim @khanniie

[Shubhashish-Chakraborty]

hey @raclim @khanniie , hope y'all having a nice day.. 😄
waiting for y'all response, ive fixed the issue #3709

[khanniie]

Hi Shubhashish! Happy new year : ) I'm a contributor to the project, but not the lead, so I'm not the right person to review this. Thanks!

[Shubhashish-Chakraborty]

aah Alright, my bad😅
@khanniie

[raclim]

Sorry for taking a while to get back on this and thank you so much for giving this a go!

I think we might not be moving forward with this solution since we currently plan to refactor the Editor component in the develop-codemirror-v6 branch. I'm sorry that we couldn't get this in, but please feel free to check out our other issues that do not have a "Awaiting Maintainer Approval" label or have a "Ready for Work" one!

[Shubhashish-Chakraborty]

Alright sure