Sync profile docs with implementation

[Copilot]

The docs/configuration/profiles.md had drifted from the actual profile definitions in isort/profiles.py.

What changed in the docs

• Google: Was missing line_length: 1000 and had a truncated single_line_exclusions: ('typing',) instead of the full ('collections.abc', 'six.moves', 'typing', 'typing_extensions')
• Appnexus: Was missing split_on_trailing_comma: True (inherited from black via **black unpacking)
• Plone: Retains the original hand-crafted "Based on black with these tweaks:" description listing only the 2 plone-specific settings (force_alphabetical_sort and force_single_line)
• Black: No change — split_on_trailing_comma: True was already present in the implementation

Original prompt

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This section details on the original issue you should resolve

<issue_title>Docs about profiles not in sync with implementation</issue_title>
<issue_description>There are two cases where the docs about profiles don't agree with the implementation.

Black profile: the docs say that the profile should set split_on_trailing_comma=True while the implementation incorrectly doesn't set this option.

Plone profile: The docs are outdated.</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Docs about profiles not in sync with implementation #2091

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[DanielNoord]

@copilot Revert the changes in these lines

[Copilot]

Done in c9f6cea — the plone section is reverted to the original "Based on black with these tweaks:" description showing only the 2 plone-specific settings.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.16%. Comparing base (87439d5) to head (c9f6cea).
⚠️ Report is 4 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2495   +/-   ##
=======================================
  Coverage   99.16%   99.16%           
=======================================
  Files          40       40           
  Lines        3096     3096           
  Branches      674      674           
=======================================
  Hits         3070     3070           
  Misses         14       14           
  Partials       12       12           

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