[Lens] Suggestions v2

[timductive]

Describe the feature:
The Lens suggestion system should be upgraded to become more opinionated and tailored towards specific use-cases.

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1. [Lens] Create curated suggested visualisations based on index pattern #100642
   Feature:Lens Team:Visualizations enhancement impact:medium +4
2. [Lens] Use ECS schema information in field browser and suggestions #55898
   Feature:Discover Feature:Lens Team:DataDiscovery Team:Visualizations discuss enhancement impact:high vis:suggestions +8
3. [Lens] When a string or number field begins dragging, query its cardinality and use it for suggestions #74260
   Feature:Lens Team:Visualizations enhancement impact:low +4
4. [Lens] Show suggestions without a chart based on field existence and popularity information #94064
   Feature:Lens Team:Visualizations enhancement impact:needs-assessment vis:suggestions +5
5. [Lens] Breakdown by _tsid by default if dataView is TSDB based #172376
   Feature:Lens Team:Visualizations enhancement impact:medium +4
6. [Lens] Automatically suggest TSDB dimensions for a given TSDB metric #172375
   Feature:Lens Team:Visualizations enhancement impact:medium +4

Behavior

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1. [Lens] Improve table suggestions when dragging fields onto the table #60048
   Feature:Lens Team:Visualizations enhancement +3
2. [Lens] Default suggestion for string fields should be a horizontal bar chart instead of vertical #73125
   Feature:Lens Team:Visualizations enhancement impact:low +4
3. [Lens] Table doesn't appear as one of the Lens suggestions #74247
   Feature:Lens Team:Visualizations enhancement good first issue impact:medium +5
4. [Lens] on the second metric instead of default to average use the function user selected last #65903
   Feature:Lens Team:Visualizations enhancement impact:low vis:suggestions +5
5. [Lens] When dragging a field to the workspace, let user know what will happen after dropping a field #96120
   Feature:Lens Team:Visualizations enhancement impact:low papercut +5

Tech Debt

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1. Suggestions refactoring #145571
   Feature:Lens Team:Visualizations impact:medium loe:x-large technical debt +5

[elasticmachine]

Pinging @elastic/kibana-visualizations (Team:Visualizations)

[drewdaemon]

Even though the focus here is (appropriately) Lens, I personally hope that we think broadly among all analyst experience products. For example, using ECS to suggest default data view field formatters.

[ruflin]

I'm excited about this list. Every step we can do to make users "think / guess less" is a step forward. I'll leave some more comments on the issues itself.