Show help in external browser by default

[ales-erjavec]

Issue

Ref: https://github.com/biolab/orange3/issues/6987#issuecomment-2750707248

Changes

Show help in external browser by default

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 76.49%. Comparing base (8555164) to head (0011334).

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #327      +/-   ##
==========================================
- Coverage   76.49%   76.49%   -0.01%     
==========================================
  Files         102      102              
  Lines       21257    21257              
==========================================
- Hits        16261    16260       -1     
- Misses       4996     4997       +1     

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