[Feature] Add an approach to build and commit images of flows

[shahankhatch]

Feature Description

Currently, we have a build mechanism for the flows; however, this requires a stakeholder to clone and build this locally to view the images. This issue proposes a practice to build images of flows and include them in the repo as part of the documentation.

The simplest approach is to manually update flow images.
A more automated approach is to build images automatically as part of a build script and a pre-commit hook can verify that the images are built when the flow is updated. Automating image building as part of the pre-commit is beyond the scope of this proposal as it can change the set of files being committed.

Additional Information

[bitparadigm]

@shahankhatch Seems like this should be closed as it was done in other PRs.