Update web_advanced docs

[Cycloctane]

What do these changes do?

Some contents in Web Server Advanced docs are outdated.

• start command no longer exists in aiohttp-devtools.
• third-party library aiohttp-swagger seems not maintained and has unsolved issues.

This pr removes above contents.

Are there changes in behavior for the user?

Is it a substantial burden for the maintainers to support this?

Related issue number

Checklist

• I think the code is well written
• Unit tests for the changes exist
• Documentation reflects the changes
• If you provide code modification, please add yourself to CONTRIBUTORS.txt
• Add a new news fragment into the CHANGES/ folder

[codspeed-hq]

CodSpeed Performance Report

Merging #11347 will not alter performance

_{Comparing Cycloctane:docs_update_web_advanced (19ea103) with master (9116457)}

Summary

✅ 59 untouched benchmarks

[Dreamsorcerer]

Yeah, I removed the start command as it was basically just trying to do what create-aio-app does. Once I get around to giving create-aio-app some updates, we can link that project here instead.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.76%. Comparing base (8afdc4d) to head (19ea103).
⚠️ Report is 7 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master   #11347   +/-   ##
=======================================
  Coverage   98.76%   98.76%           
=======================================
  Files         129      129           
  Lines       43374    43375    +1     
  Branches     2323     2323           
=======================================
+ Hits        42837    42838    +1     
  Misses        383      383           
  Partials      154      154           

Flag	Coverage Δ
CI-GHA	98.64% <ø> (+<0.01%)	⬆️
OS-Linux	98.38% <ø> (+<0.01%)	⬆️
OS-Windows	96.81% <ø> (+<0.01%)	⬆️
OS-macOS	97.69% <ø> (+<0.01%)	⬆️
Py-3.10.11	97.33% <ø> (-0.01%)	⬇️
Py-3.10.18	97.73% <ø> (+<0.01%)	⬆️
Py-3.11.13	97.92% <ø> (-0.01%)	⬇️
Py-3.11.9	97.52% <ø> (-0.01%)	⬇️
Py-3.12.10	97.62% <ø> (-0.02%)	⬇️
Py-3.12.11	98.02% <ø> (-0.01%)	⬇️
Py-3.13.3	?
Py-3.13.5	98.28% <ø> (?)
Py-3.9.13	97.22% <ø> (+<0.01%)	⬆️
Py-3.9.23	97.61% <ø> (+<0.01%)	⬆️
Py-pypy7.3.16	94.51% <ø> (-0.25%)	⬇️
VM-macos	97.69% <ø> (+<0.01%)	⬆️
VM-ubuntu	98.38% <ø> (+<0.01%)	⬆️
VM-windows	96.81% <ø> (+<0.01%)	⬆️

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[patchback]

Backport to 3.12: 💚 backport PR created

✅ Backport PR branch: patchback/backports/3.12/eac0ef9291fe34912809619086fe4e6c859e2cc7/pr-11347

Backported as #11348

🤖 @patchback
I'm built with octomachinery and
my source is open — https://github.com/sanitizers/patchback-github-app.

[patchback]

Backport to 3.13: 💚 backport PR created

✅ Backport PR branch: patchback/backports/3.13/eac0ef9291fe34912809619086fe4e6c859e2cc7/pr-11347

Backported as #11349

🤖 @patchback
I'm built with octomachinery and
my source is open — https://github.com/sanitizers/patchback-github-app.