Rename Terminal interface and update port

Author: ConnorNelson

welcome/module.yml

@@ -31,7 +31,8 @@ resources:
     name: Using the Terminal
     allow_privileged: false
     interfaces:
-      Terminal: 7681
+      name: Terminal
+      port: 7681
   - id: vscode
     type: challenge
     name: Using the VSCode Workspace