Revert "Merge branch 'fix-item-height-in-wiki-sidebar' into 'master'"

Purpose of revert

Revert "Merge branch 'fix-item-height-in-wiki-sidebar' into 'master'"

This reverts merge request !115929 (merged)

Fixing the height of Wiki sidebar components without implementing any further styling (i.e. word breaks, whitespace, text-overflow) leads to significant navigation issues with overlapping page titles. See Wiki titles on the sidebar overlap if they reac... (#412894 - closed).

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Checklist

• Create an issue to reinstate the merge request and assign it to the author of the reverted merge request.
• If the revert is to resolve a broken 'master' incident, please read through the Responsibilities of the Broken master resolution DRI.
• If the revert involves a database migration, please read through Deleting existing migrations.
• Add the appropriate labels before the MR is created. We can skip CI/CD jobs only if the labels are added before the CI/CD pipeline is created.

Milestone info

• I am reverting something in the current milestone. No changelog is needed, and I've added a ~"regression:*" label.
• I am reverting something in a different milestone. A changelog is needed, and I've removed the ~"regression:*" label.

Related issues and merge requests