Remove EventDetailsComponent factory alias

[dreikanter]

Changes:

• Remove the EventDetailsComponent.for alias.
• Instantiate the component directly at both call sites.
• Remove the alias-only test and update rendering tests.

Why:

The factory method only forwarded to .new and performed no dispatch or configuration.

References:

• Related issue: Review the code structure #1010 (F-060)

Checks:

• Existing component tests continue to cover normal and admin rendering.
• GitHub Actions will verify the branch.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.55%. Comparing base (ce0547a) to head (c37edc7).
⚠️ Report is 8 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1083      +/-   ##
==========================================
- Coverage   97.55%   97.55%   -0.01%     
==========================================
  Files         355      355              
  Lines        8358     8356       -2     
==========================================
- Hits         8154     8152       -2     
  Misses        204      204              

Files with missing lines	Coverage Δ
app/components/event_details_component.rb	78.12% <ø> (-1.29%)	⬇️

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