Improve heading style for sidebar #5879
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This pull request addresses a UI issue where very long headings in the sidebar component overflow their container, breaking the layout.
Problem
Currently, if a heading label is too long, it extends beyond the sidebar boundaries due to missing style constraints—unlike sidebar links, which are properly contained.
Solution
To resolve this, we apply the same
CSS
properties used for link elements, such as text overflow handling, to heading elements. This ensures long headings are truncated or wrapped appropriately, maintaining the sidebar's layout integrity.