feat(protocol-designer): timeline scrubber to the overview page

[jerader]

Overview

Some skunkwork that adds the timeline scrubber to PD's overview behind a feature flag.

Test Plan and Hands on Testing

Test out a Flex protocol with the feature flag turned on in pd. see that the timeline scrubber works and generates the steps and visualizes them.

Example protocol you can upload
Bead clean (5).json

Changelog

• move the load commands into a shared util for PD to use in fileCreator and the scrubber
• copied the command text json files into pd
• clean up timeline scrubber props since they were redundant

Risk assessment

low, behind ff

[ncdiehl11]

left a bunch of nits but nothing blocking. looks super cool