Databricks SQL fixes

[Ajay-Pandey]

• Added support for customizing scatter point size and opacity in AI/BI dashboards.
• Improved interactivity in displaying tooltips when hovering over pie, scatter, and heatmap charts with many data points.
• AI/BI dashboard widgets created by Databricks Assistant now include an auto-generated title.
• Account users can now download visualization data as CSV or Excel from published AI/BI dashboards.

[Rishabh_Tiwari · Accepted solution]

Thank you for sharing the updates on fixes @Ajay-Pandey .