fix: define renderCodeWithLineNumbers in script.js to resolve ReferenceError

[anshul23102]

Description

The code viewer panel on detail pages called renderCodeWithLineNumbers(data.code) but this function was never defined anywhere in the codebase. Every click on the View Code or View Code (mobile) button threw a ReferenceError in the browser console and the code panel rendered empty.

Root Cause

renderCodeWithLineNumbers(data.code).forEach(function (row) {
  codeContentEl.appendChild(row);
});
// renderCodeWithLineNumbers is called here but was never defined

Related Issue

Closes #406

Type of Change

• Bug fix

Changes Made

• static/script.js:
  • Added renderCodeWithLineNumbers(code) function inside the detail-page block, adjacent to fetchStarterCode.
  • The function splits the code string into lines and returns an array of DOM row elements, each containing a line-number gutter cell (.code-line-number) and a content cell (.code-line-content).
  • Uses document.createElement and textContent instead of innerHTML so the code content is never parsed as markup.

Testing Done

1. Click View Code on a project detail page: code panel opens and displays code with line numbers.
2. Code containing HTML special characters renders as plain text, not markup.
3. Empty code string: renders zero rows without errors.

Checklist

• My code follows the style and formatting of this project
• I have tested my changes locally and they work as expected
• There are no merge conflicts with the base branch
• This PR is linked to the correct issue

[vercel]

@anshul23102 is attempting to deploy a commit to the komalsony234-1530's projects Team on Vercel.

A member of the Team first needs to authorize it.

[anshul23102]

@komalharshita this PR is ready for review and all CI checks pass. Could you please add the relevant labels? It helps with tracking. Thank you!

[anshul23102]

Hi @komalharshita, just a gentle follow-up on this PR. It has been about 5 days and the branch is clean with no CI failures or conflicts. Please let me know if you would like any changes. Thank you for your time!

[komalharshita]

Thank you for the contribution.

I reviewed the changes and verified that this PR directly addresses the reported ReferenceError caused by the missing renderCodeWithLineNumbers() function.

The implementation is focused, follows the existing DOM structure and CSS class conventions, and safely renders code content using textContent. This restores the View Code functionality and prevents the runtime error from occurring when opening starter code panels.

The fix is clear, low-risk, and scoped appropriately to the linked issue.

Looks good to me and is ready to be merged after resolving the merge conflicts with the latest main branch.