word wrap prev/next links on autodocs

[peterychang]

Why are these changes needed?

Long module names get cut off in autodocs. Fixes (3). I would love to break the words on dots and underscores, but it doesn't look like theres a CSS option for that

before:

after:

Related issue number

#5634

Checks

• I've included any doc changes needed for https://microsoft.github.io/autogen/. See https://github.com/microsoft/autogen/blob/main/CONTRIBUTING.md to build and test documentation locally.
• I've added tests (if relevant) corresponding to the changes introduced in this PR.
• I've made sure all auto checks have passed.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 75.60%. Comparing base (5685bd1) to head (78cfb9f).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #5867   +/-   ##
=======================================
  Coverage   75.60%   75.60%           
=======================================
  Files         189      189           
  Lines       12734    12734           
=======================================
  Hits         9627     9627           
  Misses       3107     3107           

Flag	Coverage Δ
unittests	75.60% <ø> (ø)

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