Addon-docs: Change the way PropType used by ArgTable are generated for Flow types

[phated]

Issue: N/A
Requires: #12588

What I did

I changed the way Flow types were converted into PropType because ArgsTable expects a string for summary and details, but Flow types passed to the converter will contain rich type information that is often lost when just using the raw value (as was done previously).

The way the generation is done, all the previous tests that just used raw values are still passing. Additionally, I added a bunch of tests around more specific types of generation.

It might also make sense to have a discussion around whether ArgsTable should receive the rich type information produced by react-docgen instead of only operating on string values. I think that would resolve issues like #12587 in a cleaner manner.

How to test

• Is this testable with Jest or Chromatic screenshots? Yep, added a bunch of jest snapshots.
• Does this need a new example in the kitchen sink apps? No
• Does this need an update to the documentation? No

If your answer is yes to any of these, please make sure to include it in your PR.

[shilman]

Seeing what looks like a formatting regression in this PR:

Versus what I'm seeing in next:

(NOTE: I updated this PR from next just in case it was something in the meantime)

@phated can you possibly:

1. comment on whether this was intended and if not, fix it
2. add a story that captures this change in chromatic

Thanks and sorry for the slow slow response time on this 🙈

[phated]

Very curious! There was no formatting when I originally worked on this. I probably need some time to investigate where that is being tripped up.

[stale]

Hi everyone! Seems like there hasn't been much going on in this issue lately. If there are still questions, comments, or bugs, please feel free to continue the discussion. Unfortunately, we don't have time to get to every issue. We are always open to contributions so please send us a pull request if you would like to help. Inactive issues will be closed after 30 days. Thanks!

[shilman]

closing this for now. please feel free to reopen if you need it!