E2E: Fix collapsing menu item if it is already open

andreyrequested to merge
andrey-sidebar-milestone-fixes into master

What does this MR do and why?

Fix open_submenu method to not close menu item if it's already open

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

Edited by Tiffany Rea

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