feat: correct local access URL in installation instructions

Author: nicosammito

content/general/install.mdx

@@ -114,7 +114,7 @@ Before beginning, ensure you have the following installed on your system:
         ```
 
         Once the containers are running, you can access the CodeZero Dashboard via your browser (typically
-        at http://localhost:3000).
+        at http://localhost/).
 
     </Step>
     <Step>