[Meta] Visualization Usability Enhancements

[timductive]

This is a meta issue to track all of the usability enhancements we want to fix in the short-term.

Lens & Unified Search

### Tasks
- [ ] https://github.com/elastic/kibana/issues/156842
- [ ] https://github.com/elastic/kibana/issues/158878
- [ ] https://github.com/elastic/kibana/issues/168753
- [ ] https://github.com/elastic/kibana/issues/158876
- [ ] https://github.com/elastic/kibana/issues/147745
- [ ] https://github.com/elastic/kibana/issues/158875
- [ ] https://github.com/elastic/kibana/issues/163391
- [ ] https://github.com/elastic/kibana/issues/176037

Charts

### Tasks
- [ ] https://github.com/elastic/elastic-charts/issues/2121
- [ ] https://github.com/elastic/elastic-charts/issues/2123
- [ ] https://github.com/elastic/elastic-charts/issues/2130
- [ ] https://github.com/elastic/elastic-charts/issues/2125
- [ ] https://github.com/elastic/elastic-charts/issues/2129
- [ ] https://github.com/elastic/elastic-charts/issues/1908
- [ ] https://github.com/elastic/elastic-charts/issues/2126

Tooltip

### Tasks
- [ ] https://github.com/elastic/elastic-charts/issues/2132
- [ ] https://github.com/elastic/elastic-charts/issues/2134
- [ ] https://github.com/elastic/elastic-charts/issues/2133
- [ ] https://github.com/elastic/elastic-charts/issues/2048

[elasticmachine]

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

[timductive]

EUI Dependencies tracked here: https://github.com/elastic/eui/issues/7112