feat: useWizardApiFetch add manual cache handling logic

[jaredrethman]

All Submissions:

• Have you followed the Newspack Contributing guideline?
• Does your code follow the WordPress' coding standards and VIP Go coding standards?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?

Changes proposed in this Pull Request:

useWizardApiFetch caches in 3 ways:

• Automatically for GET requests for specific paths.
• updateCacheKey: Useful when different requests share the same response/cache schema.
• updateCacheMethods: Useful when requests share the same path and response/cache schema.

The problem:
There are certain scenarios where return structures do not align with the cached object. These situations require either more configuration inside useWizardApiFetch or providing an API for directly interfacing with it, this PR introduces the latter.

Additionally, changes where made to fix how paths are stored as cache keys by removing query arguments.

How to test the changes in this Pull Request:

1. Checkout this branch and build assets git checkout origin/feat/manual-cache-logic && npm run build
2. Open /src/wizards/newspack/views/settings/display-settings/index.tsx
3. Update:

const { wizardApiFetch, isFetching, errorMessage } = useWizardApiFetch(
	'newspack-settings/theme-mods'
);

to

const { wizardApiFetch, isFetching, errorMessage, cache } =
	useWizardApiFetch( 'newspack-settings/theme-mods' );
const themeModsCache = cache(
	'/newspack/v1/wizard/newspack-setup-wizard/theme'
);

4. Add below element to return statement.

<button
	onClick={ () => {
		const showAuthorBio = ! data.show_author_bio;
		setData( {
			...data,
			show_author_bio: showAuthorBio,
		} );
		themeModsCache.set( {
			theme_mods: {
				...data,
				show_author_bio: showAuthorBio,
			},
		} );
	} }
>
	{ __( 'Toggle Author Bio', 'newspack-plugin' ) }
</button>

5. Run npm run watch|build and navigate to /wp-admin/admin.php?page=newspack-settings#/display-settings
6. Depending on where you added the <button>, you should see below.
   
7. Upon clicking "Toggle Author Bio" button you will see the Author Bio control toggle on/off.
8. Navigate to different tab i.e. "Additional Brands" and then back to "Display Settings" tab and confirm the control is as you left it.

Other information:

• Have you added an explanation of what your changes do and why you'd like us to include them?
• Have you written new tests for your changes, as applicable?
• Have you successfully ran tests with your changes locally?

[dkoo]

After testing the "Toggle Author Bio" button both with and without this fix, I understand why it's needed. Nice improvement!