[ResponseOps][Meta] Alerting RBAC enhancements

[cnasikas]

NOTE: THIS ISSUE IS A DRAFT IN PROGRESS.

Summary

A Meta issue to track the upcoming enhancements for the alerting's RBAC model.

Tasks

Beta Give feedback

1. [ResponseOps][Alerting] Decouple rule producer/consumer settings from Kibana feature ID #181559
   Feature:Alerting Feature:Alerting/RulesFramework Team:ResponseOps +3
   
2. Remove usage of producer from authorization
3. Remove validLegacyConsumers from rule type
4. Use ruleTypeIds istead of featureIds when fetching alerts using the rule search strategy
5. Provide helpers utils for solutions to get all valid consumers based by rule type
6. Use ruleTypeIds istead of featureIds when fetching browser fields
7. Use ruleTypeIds istead of featureIds when fetching alert summaries
8. [ResponseOps][Rules] Unauthorized to find alerts for rules with the discover consumer #184595
   Feature:Alerting Team:ResponseOps bug +3
   
9. got Unauthorized by "alerts" to get ".es-query" rule after elk upgrade #175206
   Team:ResponseOps bug +2
10. [Response Ops] Can't see ML rule created with Stack Rules role visibility as a user with access to only Stack Rules #191075
    Feature:Alerting/RulesFramework Team:ResponseOps bug +3
    
11. [Alerting] Simplify RBAC to remove complicated "Role visibility" situation #189997
    Team:ResponseOps Team:obs-ux-management +2
    
12. Rules with "Stack Rules" role visibility are not visible for the users with kibana_admin role #193549
    Feature:Alerting/RulesFramework Team:ResponseOps bug +3
    
13. Send KQL in the filter of the Find API instead of sending the whole KueryNode
14. [ResponseOps] metrics threshold rule created with consumer: "alerts", which RuleRegistry considers invalid #188038
    Feature:Alerting Feature:Alerting/Alerts-as-Data Team:ResponseOps bug +4
15. Remove filter from Find Rules internal API
16. Remove AlertConsumers enum
17. Better documentation about consumers in our APIs

Related: #183756

[elasticmachine]

Pinging @elastic/response-ops (Team:ResponseOps)