feat: add tab select with save chart to dashboard (apache#36332)

Co-authored-by: Evan Rusackas <evan@preset.io>
Co-authored-by: Enzo Martellucci <enzomartellucci@gmail.com>

Author: 3 people

superset-frontend/src/dashboard/constants.ts

@@ -48,3 +48,6 @@ export const DEFAULT_CROSS_FILTER_SCOPING: NativeFilterScope = {
   rootPath: [DASHBOARD_ROOT_ID],
   excluded: [],
 };
+
+export const CHART_WIDTH = 4;
+export const CHART_HEIGHT = 50;