Navbar: right-items not hidden on mobile leading to an error

[tishoyanchev]

Detailed description of how to reproduce the problem

This is an edge case. Under some circumstances, when the page loads on a mobile, the right-items are not hidden inside the
navbar mobile menu, and thus, when you expand the screen, an error occurs because the items inside the menu are being queried but they don't exist.
Cannot read properties of null (reading 'setAttribute') .. caused by searchBarRight.setAttribute('slot', 'search-bar-left');

Related issue: #1631

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Any

Expected behavior

No error

Additional information

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