Remove ImmutableJS (scoping!) about streamlit HOT 3 CLOSED

Structure

• Delta messages come into DeltaParser.ts, which converts them to immutables
• Elements represent new report elements
• Block.tsx transforms Element deltas into React elements
• Periodically (on a timer), App.tsx rebuilds the entire app layout by iterating the list of all elements, and creating the proper React component for each one.

Plan

• Take a piecemeal approach to this. This means preserving the ImmutableJS format for each element until it's converted.
• Ideally, this means not using ImmutableJS in Elements, BlockElement, and ReportElement, and instead doing the conversion on an ad-hoc basis?
• Meaning that ReportElement should be an ElementProto + reportID

from streamlit.

Tim Conkling commented: I’m making design and implementation notes in a Notion page: [https://www.notion.so/streamlit/immutablejs-Refactor-c8bf2575c0c240bd913d263bb7ba2866|https://www.notion.so/streamlit/immutablejs-Refactor-c8bf2575c0c240bd913d263bb7ba2866]

from streamlit.

Fixed by Tim!

from streamlit.