Search Export Panel - Accessibility - Four skipped heading levels are present in search export panel.

[khodgkinson-he]

Arches Version/Branch: 6.1

Describe the bug and how to reproduce it:

Accessibility guideline. Heading levels should increase sequentially, skipped heading levels are present.

1. Navigate to Search page and perform search.
2. Click on Search Export button to open search export tab.
3. Enable WAVE browser extension.