Enhance UL customize and switch commands

[ramya18101]

🔧 Changes

• Support new command auth0 ul switch command to support an easy switch on rendering-modes
• Enhanced auth0-cli’s experience for auth0 ul customize with more interactive logs

📚 References

🔬 Testing

📝 Checklist

• All new/changed/fixed functionality is covered by tests (or N/A)
• I have added documentation for all new/changed functionality (or N/A)

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 21.21212% with 78 lines in your changes missing coverage. Please review.

Project coverage is 70.12%. Comparing base (35776ca) to head (492054d).

Files with missing lines	Patch %	Lines
internal/cli/universal_login_customize.go	20.40%	77 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1142      +/-   ##
==========================================
- Coverage   70.60%   70.12%   -0.48%     
==========================================
  Files          98       98              
  Lines       14029    14111      +82     
==========================================
- Hits         9905     9896       -9     
- Misses       3526     3621      +95     
+ Partials      598      594       -4     

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