Remove astro as recommended extension (#1285)

Author: elie222

.vscode/extensions.json

@@ -1,9 +1,8 @@
 {
 	"recommendations": [
-        "astro-build.astro-vscode",
         "denoland.vscode-deno"
     ],
 	"unwantedRecommendations": [
 
 	]
-}
+}