More doc, cleanup.

src/components/widgets/Steps2.astro

@@ -1,5 +1,6 @@
 ---
 import { Icon } from 'astro-icon';
+import type { CallToAction } from '~/components/widgets/CallToAction.astro';
 
 interface Item {
   title: string;
@@ -7,12 +8,6 @@ interface Item {
   icon?: string;
 }
 
-interface CallToAction {
-  text: string;
-  href: string;
-  icon?: string;
-}
-
 export interface Props {
   title?: string;
   subtitle?: string;