[Widgets refactor] typing use enums

[mishig25]

Nit: use enums when makes sense here

[SBrandeis]

What's the benefit of typing it this way?

[mishig25]

No benefit. I thought it would be stylistically consistent with

hub-docs/js/src/lib/interfaces/InferenceDisplayability.ts

Lines 1 to 14 in 5e3dcd1

	export enum InferenceDisplayability {
	/**
	* Yes
	*/
	Yes = "Yes",
	/**
	* And then, all the possible reasons why it's no:
	*/
	ExplicitOptOut = "ExplicitOptOut",
	CustomCode = "CustomCode",
	LibraryNotDetected = "LibraryNotDetected",
	PipelineNotDetected = "PipelineNotDetected",
	PipelineLibraryPairNotSupported = "PipelineLibraryPairNotSupported",
	}