docs: move bot comparison page to all other section (#25547)

Co-authored-by: Rhys Arkins <rhys@arkins.net>

docs/usage/.pages

@@ -1,6 +1,5 @@
 nav:
   - Home: 'index.md'
-  - Bot comparison: 'bot-comparison.md'
   - Reading List: 'reading-list.md'
   - ... | getting-started
   - Troubleshooting: 'troubleshooting.md'
@@ -54,5 +53,6 @@ nav:
       - 'Frequently Asked Questions': 'faq.md'
       - 'Known Limitations': 'known-limitations.md'
       - 'Release notes for major versions': 'release-notes-for-major-versions.md'
+      - Bot comparison: 'bot-comparison.md'
   - About Us: 'about-us.md'
   - Contributing to Renovate: 'contributing-to-renovate.md'