fix(astro:config): add missing import / remove two unavailable imports (#12718)

Co-authored-by: Sarah Rainsberger <5098874+sarah11918@users.noreply.github.com>

Author: ArmandPhilippot

src/content/docs/en/reference/modules/astro-config.mdx

@@ -25,6 +25,7 @@ import {
   base,
   build,
   site,
+  compressHTML,
 } from "astro:config/client";
 ```
 
@@ -49,6 +50,7 @@ See more about the configuration imports available from `astro:config/client`:
 - [`base`](/en/reference/configuration-reference/#base)
 - [`build.format`](/en/reference/configuration-reference/#buildformat)
 - [`site`](/en/reference/configuration-reference/#site)
+- [`compressHTML`](/en/reference/configuration-reference/#compresshtml)
 
 
 
@@ -66,6 +68,7 @@ import {
   outDir,
   publicDir,
   root,
+  compressHTML,
 } from "astro:config/server";
 ```
 
@@ -111,13 +114,10 @@ See more about the configuration imports available from `astro:config/server`:
 - [`build.format`](/en/reference/configuration-reference/#buildformat)
 - [`build.client`](/en/reference/configuration-reference/#buildclient)
 - [`build.server`](/en/reference/configuration-reference/#buildserver)
-- [`build.serverEntry`](/en/reference/configuration-reference/#buildserverentry)
-- [`build.assetsPrefix`](/en/reference/configuration-reference/#buildassetsprefix)
 - [`site`](/en/reference/configuration-reference/#site)
 - [`srcDir`](/en/reference/configuration-reference/#srcdir)
 - [`cacheDir`](/en/reference/configuration-reference/#cachedir)
 - [`outDir`](/en/reference/configuration-reference/#outdir)
 - [`publicDir`](/en/reference/configuration-reference/#publicdir)
 - [`root`](/en/reference/configuration-reference/#root)
-
-
+- [`compressHTML`](/en/reference/configuration-reference/#compresshtml)