Fix secondary nav dropdown menu styling in tablet and mobile screens

What does this MR do?

Fixes styling glitches for Order by dropdown in tablet and mobile screens

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Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• [ ] Documentation created/updated
• [ ] Tests added for this feature/bug
• Conforms to the code review guidelines
• Conforms to the merge request performance guidelines
• Conforms to the style guides
• [ ] Conforms to the database guides
• ~~[ ] Link to e2e tests MR added if this MR has Requires e2e tests label. See the Test Planning Process.~~
• [ ] Security reports checked/validated by reviewer

Closes #54648 (closed)