(fix) O3-5247 Hamburger Menu Close Button Not Working

[abheeee03]

Requirements

• This PR has a title that briefly describes the work done including the ticket number. Ensure your PR title includes a conventional commit label (such as feat, fix, or chore, among others). See existing PR titles for inspiration.

If applicable

• My work is based on designs, which are linked or shown either in the Jira ticket or the description below.
• My work includes tests or is validated by existing tests.
• I have updated the esm-framework mock to reflect any API changes I have made.

Summary

This PR fixes an issue where the tab navbar would immediately reopen after being closed via the hamburger button.

Changes

• Added e.stopPropagation() to onMouseDown and onTouchStart events on the HeaderMenuButton (hamburger icon).

Reasoning
The hamburger button click was propagating to a global "click outside" listener (likely useOnClickOutside or similar), causing a race condition where the menu would toggle state twice (close -> open) or interfere with the intended toggle action. Stopping propagation ensures the button click is handled in isolation.

Screenshots

before:

issue-hamburger.mp4

after:

fix-hamburger.mp4

Related Issue

https://openmrs.atlassian.net/browse/O3-5247