fix: add missing devDependency(ts-dedent)

[duguyihou]

Issue:

What I did

add ts-dedent to devDependency

How to test

ts-dedent is not in the devDependency list but it is required in StoryHash.ts

Please explain how to test your changes and consider the following questions

• Does this need a new example in examples/expo-example? No
• Does this need an update to the documentation? No

[dannyhw]

weird that I never saw this before but I guess it should just be a regular dependency not dev dependency right?

[duguyihou]

In storybookJS project, it is in devDependency as well.

[dannyhw]

hmm well its probably just prebundling it thats why, anyway I think this is fine to merge

[dannyhw]

Thanks for the contribution 👍