feat: #3632631 Add a classic Tagadelic display with logarithmic term sizes

Adds a classic inline Tagadelic display with six logarithmic font-size levels. Equal counts use the smallest level; native term links retain access filtering, translations, limits, and More tags without requiring D3 or the Tagadelic module.

Issue: #3632631

Validation

2 functional tests passed with 40 assertions. Drupal/DrupalPractice coding standards and whitespace checks passed.