📖 Fix jq codeblocks

[michaelryanpeter]

Description

Closes #698

• Fix codeblocks in the Catalog queries description list
• Fix typos that were called out after PR 📖 Update documentation for "Finding extensions to install" #696 was merged

Preview links

• Catalog queries (better formatting and the copy button at the end of the code block)
• Finding extensions to install (fix typos)

Reviewer Checklist

• API Go Documentation
• Tests: Unit Tests (and E2E Tests, if appropriate)
• Comprehensive Commit Messages
• Links to related GitHub Issue(s)

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 63.50%. Comparing base (d9b51d6) to head (083a09b).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #728   +/-   ##
=======================================
  Coverage   63.50%   63.50%           
=======================================
  Files          22       22           
  Lines        1403     1403           
=======================================
  Hits          891      891           
  Misses        459      459           
  Partials       53       53           

Flag	Coverage Δ
e2e	47.25% <ø> (ø)
unit	57.40% <ø> (ø)

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