[Monitoring] Change wording of the create option in the "Alerts and rules" dropdown

[estermv]

Summary

This issue is a follow up of #101565 to discuss the following feedback point from @katefarrar:

Once a user selects "Yes" from the modal and creates the rules they are then able to go to the "Alerts and rules" dropdown and "Create default rules". That makes it seem like the default rules were never created. Instead, could the language say "Re-create default rules"?

Questions

• Should it say always "Re-create default rules"?
• If the user answers "No" in the modal, do we want to show "Create ..." and show "Re-create..." only if the user has some rules created?

Technical details

Since the dropdown appears on every page, I'm not sure if we can know from all pages if the user has alerts created

[elasticmachine]

Pinging @elastic/stack-monitoring (Team:Monitoring)

[elasticmachine]

Pinging @elastic/logs-metrics-ui (Team:logs-metrics-ui)