Oops, enable the Forgejo service!

That's a step I've been forgetting with services lately, but yeah, I
ran into this where analytics.openneo.net went down and I wasn't sure
why it didn't get auto-restarted, and I think it being Started But Not
Enabled is why.

So, ta-da! Fix it here before we run into that lol.

Also I refactored the handlers a bit, after seeing how I did it in the
analytics Ansible file and going like. Oh, yeah, that's just better lol

setup-forgejo.yml

@@ -59,16 +59,21 @@
         src: files/forgejo.service
         dest: /etc/systemd/system/forgejo.service
       notify:
+        - Reload service files
         - Restart Forgejo
 
-    - name: Start Forgejo service
+    - name: Enable Forgejo service
       systemd_service:
         name: forgejo
+        enabled: true
         state: started
 
   handlers:
+    - name: Reload service files
+      systemd_service:
+        daemon_reload: true
+
     - name: Restart Forgejo
       systemd_service:
         name: forgejo
         state: restarted
-        daemon_reload: true # For the case where the service file changes!