feat(nextjs): Set sendDefaultPii: true by default

[onurtemizkan]

Resolves: #958

[github-actions]

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 28.61%. Comparing base (dd9a972) to head (2efed9f).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1052   +/-   ##
=======================================
  Coverage   28.61%   28.61%           
=======================================
  Files         128      128           
  Lines       14539    14539           
  Branches      932      932           
=======================================
  Hits         4160     4160           
  Misses      10362    10362           
  Partials       17       17           

Flag	Coverage Δ
unit-tests	28.61% <ø> (ø)

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