main
chore: sync with main
chore(scss): remove injected global styles (#26469)
chore(theming): remove Sass default flags (#29401)
fix(rtl): allow :host to use rtl() (#28353)
fix(theming): update global css variable naming and default values (#16003)
refactor(themes): update border radius to new logical properties (#29002)
chore(theming): remove Sass default flag & update guidelines (#29458)