Application Start Load Screen
Issue When you start the application there is a latency between the localhost address becoming available and the application being ready for engagement. This creates a confusing user experience when you are trying to quickly get started because your assets (sources, models) are absent on load and only appear after about 500ms.
Importance Making sure the user is confidently starting the application and understands they need to wait to proceed and nothing is broken is a critical part of the experience.
Definition of Done A start screen that informs the user the application is still loading. We might use an overlay here, design work is needed.
Screenshots
Additional Context Relates to https://github.com/rilldata/rill-developer/pull/742