Issue 22835 allow keyboard navigation on ng dropdowns

[alfredo-dotcms]

Custom Dropdowns through all the angular app are not allowing navigating using keyboard keys, we need to make them work as the DOJO dropdowns

Example of Dropdowns in NG app

• Login As dialog

• Persona dialog

• Edit Layout - Add Container

• Theme selection

• Create template

Checklist

• [ ] Tests
• [ ] Translations
• [ ] Security Implications Contemplated (add notes if applicable)

Additional Info

** any additional useful context or info **

Screenshots

Original	Updated
** original screenshot **	** updated screenshot **