Provide Kibana Setting to Hide Shard Failure Warnings in UI

[therealdwright]

Describe the feature:
I would like to propose a configuration setting to hide shard failure warnings from displaying in the Kibana UI. Failures would still be logged and could be alerted on but would not be displayed in the search/discover UI like the screenshot below.

Describe a specific use case for the feature:

Sometimes users will perform inefficient queries such as a plaintext query across multiple indices. While this is not ideal, it's to be expected of non-technical users. Administrators want to monitor for such events (through cluster logs) and alert accordingly. From here a decision can be made to adjust the max_clause_count or disregard.

However, the current UX is very intrusive and leads to users reporting that the search functionality is broken.

Suggested solution:

Provide a setting in Kibana, for example hide_ui_shard_warnings (defaults to false) to suppress this behaviour.

[elasticmachine]

Pinging @elastic/kibana-app-services (Team:AppServices)

[elasticmachine]

Pinging @elastic/kibana-data-discovery (Team:DataDiscovery)

[lukasolson]

Thanks for contributing this issue. At this time, we don't plan to expose an advanced setting for this purpose, but we are actively working on improving the content and frequency of these warnings.

The following issues give a better idea of our plans:

• [Search] debounce error/warning toasts #116686
• [Discover] Inline toast error message in Discover main #149488
• [data views] remove toast display from data views service #149870
• [Discover] Inline toast error messages in surrounding documents #150154

Please comment if you think there's a reason to re-open this issue if those improvements are made.