feat: #3611182 Add an always-show Reset option to the Components exposed form

This adds an always-show Reset option to the components_exposed_form views exposed form plugin (added in #3611182).

Issue: https://www.drupal.org/project/varbase_components/issues/3611182

What / Why

Core hides the exposed form's Reset action until there is user input. Better Exposed Filters offers an "always show reset" toggle; this brings the same option to the Components exposed form so a site template can keep the Reset button visible in its filter component.

• src/Plugin/views/exposed_form/ComponentsExposedForm.php
  • defineOptions(): new reset_button_always_show option, default FALSE.
  • buildOptionsForm(): an "Always show reset button" checkbox, #states-gated invisible when the core reset_button option is unchecked.
  • exposedFormAlter(): re-reveals $form['actions']['reset']['#access'] = TRUE when the option is on and a reset action exists.

Default off, so existing views are unaffected.

AI-Generated: Yes (Used Claude Code to add the reset_button_always_show option to the ComponentsExposedForm views exposed form plugin.)

Checkpoints

• File an issue about this project
• Addition/Change/Update/Fix to this project
• Testing to ensure no regression
• Automated unit/functional testing coverage
• Developer Documentation support on feature change/addition
• User Guide Documentation support on feature change/addition
• UX/UI designer responsibilities
• Accessibility and Readability
• Reviewed by a human
• Code review by maintainers
• Full testing and approval
• Credit contributors
• Review with the product owner
• Update Release Notes
• Release