fix: move styles

Author: shleewhite

website/app/styles/doc-components/code-group.scss

@@ -6,10 +6,6 @@
 @use "../breakpoints" as breakpoint;
 @use "../typography/mixins" as *;
 
-:root {
-  --ember-shiki-border-radius: 0px;
-}
-
 .doc-code-group {
   overflow: hidden;
   border-radius: 4px;
@@ -201,6 +197,10 @@
   }
 }
 
+.doc-code-group__code-snippet-wrapper {
+  --ember-shiki-border-radius: 0px;
+}
+
 .shiki-code-block__code code {
   scrollbar-width: thin;
   scrollbar-color: var(--doc-color-gray-400) var(--doc-color-gray-300);