docs: improve getting started chapters (#10014)

www/apps/book/components/Feedback/index.tsx

@@ -32,7 +32,7 @@ const Feedback = (props: FeedbackProps) => {
       event="survey"
       pathName={feedbackPathname}
       reportLink={reportLink}
-      question="Was this chapter helpful?"
+      question={props.question || "Was this chapter helpful?"}
       {...props}
     />
   )

www/apps/book/components/Homepage/LinksSection/index.tsx

@@ -7,7 +7,7 @@ const HomepageLinksSection = () => {
       title: "Customize Medusa Application",
       links: [
         {
-          href: "/learn",
+          href: "/learn/installation",
           text: "Create your first application",
         },
         {

www/apps/book/components/MDXComponents/index.tsx

@@ -1,9 +1,11 @@
 import type { MDXComponents as MDXComponentsType } from "mdx/types"
 import { Link, MDXComponents as UiMdxComponents } from "docs-ui"
+import Feedback from "../Feedback"
 
 const MDXComponents: MDXComponentsType = {
   ...UiMdxComponents,
   a: Link,
+  Feedback,
 }
 
 export default MDXComponents