broken sticky scroll

The sticky scroll feature usually displays the headings at the top of the editor. One of the recent releases of this extension broke the sticky scroll so that it only displays the text for H1s. Any subsequent headings (H2, H3) display blank lines instead of appearing in the sticky scroll.

Tested by disabling the extension and restarting Cursor.

Reproduce the issue in the Adobe Markdown Authoring extension with sticky scroll enabled in Cursor, checking headings H1 through H3. Inspect the extension's sticky-scroll heading rendering and verify that H2 and H3 headings display their text instead of blank lines.

Written by the indexing model from the issue text.