Bug: Customize button lacks active state highlight (light mode)

[DivyanshiSingh-23]

Describe the bug
In the navbar, all buttons (e.g., Scale Recipe, etc.) display a highlight/box when active in light mode. However, the Customize button does not show this active state styling, leading to inconsistent UI behavior.

To Reproduce
Steps to reproduce the behavior:

1. Switch to light mode.
2. Click on any navbar button (e.g., Scale Recipe).
3. Notice that a black box appears indicating the active state.
4. Click on the Customize button.
5. Observe that no active black box appears.

Expected behavior
All navbar buttons, including Customize, should have a consistent active state styling (black highlight/box in light mode).

Actual Behavior:

All navbar buttons show active black box (highlight) in light mode.
Customize button does not show the active black box.

Screenshots
EXPECTED BEHAVIOR:

ACTUAL BEHAVIOR:

[github-actions]

Thank you for raising this issue!

We'll review it as soon as possible. We truly appreciate your contributions! ✨

Meanwhile make sure you've visited the README.md, CONTRIBUTING.md, and CODE_OF_CONDUCT.md before creating a PR for this. Also, please do NOT create a PR until this issue has been assigned to you. 😊

[supriya46788]

customize.js was not added in customize.html that's why it was not working, i have fixed it