Add AutoLogin config option

[synfinatic]

Refs: #1063

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.43%. Comparing base (31272cd) to head (7276c0e).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1064   +/-   ##
=======================================
  Coverage   84.43%   84.43%           
=======================================
  Files          35       35           
  Lines        3037     3037           
=======================================
  Hits         2564     2564           
  Misses        380      380           
  Partials       93       93           

Flag	Coverage Δ
unittests	84.43% <ø> (ø)

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Files with missing lines	Coverage Δ
internal/sso/settings.go	76.70% <ø> (ø)

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