feat(alert): apply --calcite-alert-corner-radius to internal close button#10388

aPreciado88 merged 2 commits intodevEsri/calcite-design-system:devfrom

aPreciado88/7180-add-alert-component-tokensEsri/calcite-design-system:aPreciado88/7180-add-alert-component-tokensCopy head branch name to clipboard