chore: New Engine Docs link, add some AA issues to troubleshooting guide

[arcoraven]

PR-Codex overview

This PR updates various documentation links throughout the application to point to the new API documentation site, replacing the old redocly URLs with the new thirdweb-engine.apidocumentation.com URLs.

Detailed summary

• Updated API Reference link in sidebar.tsx.
• Changed API reference links in page.mdx files to new URLs.
• Updated links for Update Chain Configuration, Cancel Transaction, and Contract Subscriptions operations.
• Added new sections for UserOps and related error handling in troubleshooting/page.mdx.

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[changeset-bot]

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Latest commit: e06cc9b

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Name	Status	Preview	Comments	Updated (UTC)
docs-v2	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Oct 10, 2024 5:48pm

3 Skipped Deployments

Name	Status	Preview	Comments	Updated (UTC)
thirdweb_playground	⬜️ Skipped (Inspect)			Oct 10, 2024 5:48pm
thirdweb-www	⬜️ Skipped (Inspect)			Oct 10, 2024 5:48pm
wallet-ui	⬜️ Skipped (Inspect)			Oct 10, 2024 5:48pm

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 47.74%. Comparing base (ec53366) to head (e06cc9b).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4982   +/-   ##
=======================================
  Coverage   47.74%   47.74%           
=======================================
  Files        1059     1059           
  Lines       57328    57328           
  Branches     3944     3944           
=======================================
  Hits        27369    27369           
  Misses      29268    29268           
  Partials      691      691           

Flag	Coverage Δ		*Carryforward flag
legacy_packages	65.68% <ø> (ø)		Carriedforward from ec53366
packages	43.53% <ø> (ø)

*This pull request uses carry forward flags. Click here to find out more.

[github-actions]

size-limit report 📦

Path	Size	Loading time (3g)	Running time (snapdragon)	Total time
thirdweb (esm)	42.07 KB (0%)	842 ms (0%)	2.4 s (+20.91% 🔺)	3.2 s
thirdweb (cjs)	101.87 KB (0%)	2.1 s (0%)	5.1 s (-5.91% 🔽)	7.1 s
thirdweb (minimal + tree-shaking)	4.84 KB (0%)	97 ms (0%)	155 ms (-55.88% 🔽)	252 ms
thirdweb/chains (tree-shaking)	498 B (0%)	10 ms (0%)	64 ms (-47.75% 🔽)	74 ms
thirdweb/react (minimal + tree-shaking)	17.24 KB (0%)	345 ms (0%)	408 ms (-32.74% 🔽)	753 ms

[arcoraven]

Merge activity

• Oct 10, 1:34 PM EDT: The merge label 'merge-queue' was detected. This PR will be added to the Graphite merge queue once it meets the requirements.
• Oct 10, 1:38 PM EDT: A user added this pull request to the Graphite merge queue.
• Oct 10, 1:42 PM EDT: A user merged this pull request with the Graphite merge queue.