Serverless Cross Project Search - GA: Users can control which linked projects to include in their Cross-project search query using user-friendly attributes and project tagging

**What the feature is and who it's for**
Organizations needing a single pane of glass view searching across serverless projects

**Value proposition**
To support search across serverless projects with minimal configuration and optimal performance, and relevance. CPS introduces an intuitive way to filter which linked projects are included in a search, rather than relying on cryptic identifiers. CPS relies on project routing with business-friendly metadata tags defined by default (like the project region or cloud provider), or defined by the user (like env:prod or `team:security). This scope is managed via a Kibana component that can be set at various levels, including at the dashboard or panel level.