Global Styles: Only use single property variations as color/type pres…

…ets (WordPress#62469)

* Global Styles: Only use single property variations as color/type presets

* remove unused code

* remove unused code

* remove unused code

* update comment

* fix typo

* Add the user settings to the base variation

* Update packages/edit-site/src/hooks/use-theme-style-variations/use-theme-style-variations-by-property.js

Co-authored-by: Alex Lende <alex+github.com@lende.xyz>

* Update packages/edit-site/src/hooks/use-theme-style-variations/use-theme-style-variations-by-property.js

Co-authored-by: Alex Lende <alex+github.com@lende.xyz>

* Remove the property from the user variation before merginng it with the new variation

* apply the name to the correct object

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Co-authored-by: Alex Lende <alex+github.com@lende.xyz>
Co-authored-by: scruffian <scruffian@git.wordpress.org>
Co-authored-by: jasmussen <joen@git.wordpress.org>
Co-authored-by: ajlende <ajlende@git.wordpress.org>
Co-authored-by: juanmaguitar <juanmaguitar@git.wordpress.org>
Co-authored-by: ndiego <ndiego@git.wordpress.org>
Co-authored-by: richtabor <richtabor@git.wordpress.org>
Co-authored-by: colorful-tones <colorful-tones@git.wordpress.org>