Remove "Edit on GitHub" link from terraform docs (#2540)

* Rewrite boolean expressions as array.includes

Rewriting multiple boolean expressions as a single Array.includes()
expression allows additional slugs to be compared (simply by adding)
them to the array with relatively little additional complexity

* Add terraform to list of public content repos

This has the effect of removing the "Edit this page on GitHub" link at
the bottom of the terraform docs page. This was flagged up by a user who
tried to click the link and got a 404 because that GitHub repo is not
public

src/views/docs-view/server.ts

@@ -418,9 +418,9 @@ export function getStaticGenerationFunctions<
 			 * Note: If we need more granularity here, we could change this to be
 			 * part of `rootDocsPath` configuration in `src/data/<product>.json`.
 			 */
-			const isHcp = product.slug == 'hcp'
-			const isSentinel = product.slug == 'sentinel'
-			const isPublicContentRepo = !isHcp && !isSentinel
+			const isPublicContentRepo = !['hcp', 'sentinel', 'terraform'].includes(
+				product.slug
+			)
 			if (isPublicContentRepo) {
 				layoutProps.githubFileUrl = githubFileUrl
 			}