fix(button): retain transparent button focus background

[denkristoffer]

Purpose of PR

The transparent button should keep the background as none when focused, only difference should be the outline. Have a look at https://forma-36-git-fix-transparent-button-hover.colorfuldemo.com/components/button#variants

[changeset-bot]

🦋 Changeset detected

Latest commit: 5fca169

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 32 packages

Name	Type
@contentful/f36-button	Patch
@contentful/f36-accordion	Patch
@contentful/f36-asset	Patch
@contentful/f36-autocomplete	Patch
@contentful/f36-badge	Patch
@contentful/f36-card	Patch
@contentful/f36-collapse	Patch
@contentful/f36-copybutton	Patch
@contentful/f36-core	Patch
@contentful/f36-datetime	Patch
@contentful/f36-datepicker	Patch
@contentful/f36-drag-handle	Patch
@contentful/f36-entity-list	Patch
@contentful/f36-empty-state	Patch
@contentful/f36-forms	Patch
@contentful/f36-icon	Patch
@contentful/f36-list	Patch
@contentful/f36-menu	Patch
@contentful/f36-modal	Patch
@contentful/f36-note	Patch
@contentful/f36-notification	Patch
@contentful/f36-pagination	Patch
@contentful/f36-pill	Patch
@contentful/f36-popover	Patch
@contentful/f36-skeleton	Patch
@contentful/f36-spinner	Patch
@contentful/f36-table	Patch
@contentful/f36-tabs	Patch
@contentful/f36-text-link	Patch
@contentful/f36-tooltip	Patch
@contentful/f36-typography	Patch
@contentful/f36-components	Patch

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Name	Status	Preview	Updated (UTC)
forma-36	✅ Ready (Inspect)	Visit Preview	May 24, 2023 2:41pm

[github-actions]

size-limit report 📦

Path	Size	Loading time (3g)	Running time (snapdragon)	Total time
CommonJS	143.26 KB (-0.02% 🔽)	2.9 s (-0.02% 🔽)	290 ms (-45.26% 🔽)	3.2 s
Module	139.85 KB (-0.02% 🔽)	2.8 s (-0.02% 🔽)	458 ms (+24.1% 🔺)	3.3 s