One diagram for everything instead of one per info class

Is your feature request related to a problem? Please describe. Benefits:

Enable interactions between nodes from different diagrams
- Exploring a question tree while building an answer via effects in diagram
- Exploring a source and its facts while converting those facts into core details
Make it much more reasonable to start from an argument, or a question
Only render one diagram (performant, but also intuitive)
Can remove the 'x' that gets in the way of the right-side pane chevron!!

Describe the solution you'd like

Use one react-flow component instead of one for topic, research, and claim diagrams
Multi-select ("primary information") to choose which node types should be primary/focused (topic, research, claim)
Still filter per info classification
Still provide one-clicks to the current one-clickable things (topic, explore, table, claim)
- Keeping one-click to trees could be nice because there's no other way to see all claims in a diagram
- Probably should just have an easy way to see all the claims, because we need something similar for questions, facts, etc

Describe alternatives you've considered

Additional context

Technical ideas

amelioro / ameliorate