chore: DH-21376: Add feature plan for UI table format heatmaps#1301

gzh2003 wants to merge 6 commits intomaindeephaven/deephaven-plugins:mainfrom

DH-21376-ui-table-format-heatmapsdeephaven/deephaven-plugins:DH-21376-ui-table-format-heatmapsCopy head branch name to clipboard