fix: fixed package description to remove mention of nonexistent /lib package (#543)

Author: Lioness100

package.json

@@ -1,7 +1,7 @@
 {
 	"name": "@sapphire/framework",
 	"version": "3.1.1",
-	"description": "Discord bot framework built on top of @sapphire/lib for advanced and amazing bots.",
+	"description": "Discord bot framework built for advanced and amazing bots.",
 	"main": "dist/index.js",
 	"types": "dist/index.d.ts",
 	"exports": {