Create 'Email' FieldWidgetAction for AiAutomatorType LlmEmail

Strangely, in my local ddev env. both phpcs and phpstan run without finding issues, but in GitLab phpcs fails !? I'm running these commands.

% ddev exec vendor/bin/phpcs --standard=Drupal,DrupalPractice web/modules/contrib/ai/modules/ai_automators/src/Plugin/FieldWidgetAction/Email.php

% ddev exec vendor/bin/phpstan analyze web/modules/contrib/ai/modules/ai_automators/src/Plugin/FieldWidgetAction/Email.php
Note: Using configuration file /var/www/html/phpstan.neon.
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 [OK] No errors

With the latest commit, multiple emails are extracted from a Basic Page Body field. The only issue is I can't quite get/figure the ajax to update the multi-item field. In the video, I simply refreshed the page to see all 3 items.

The other issue, is that another call to the LLM occurs on Save, and that should not happen. See 🐛 When Field Widget worker is selected, Direct also fires (?) Active

Getting merged! Thanks