refactor: changes summarize request from enum to union type

[amir002001]

Description

I added a refactor that adds union types to co.summarize() instead of using TypeScript enums. Also noticed almost all of your codebase uses union types. Excuse me if this is an edge case where enums are good. Here's some sources behind my reasoning, but my main reason was IntelliSense :)

sources:

• https://stackoverflow.com/questions/40275832/typescript-has-unions-so-are-enums-redundant

• https://www.bam.tech/article/should-you-use-enums-or-union-types-in-typescript

• https://www.youtube.com/watch?v=jjMbPt_H3RQ (this guy is TypeScript)

  Type of change

• [x] Refactor

How Has This Been Tested?

Passes all tests (except for the last one because my API key is rate limited haha), and now has LSP IntelliSense as well for the union types.

Checklist:

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [x] I have commented on my code, particularly in hard-to-understand areas
• [x] I have made corresponding changes to the documentation
• [x] My changes generate no new warnings
• [x] I have added tests that prove my fix is effective or that my feature works
• [x] New and existing unit tests pass locally with my changes
• [x] Any dependent changes have been merged and published in downstream modules

[CLAassistant]

All committers have signed the CLA.