Unify nginx configuration

This creates a simple base configuration skeleton, that other configuration can be easily loaded into.

ansible/roles/qbittorrent/tasks/nginx.yml

@@ -1,18 +1,7 @@
-- name: Install nginx
-  package:
-    name: nginx
-  become: true
-
-- name: Enable nginx
-  service:
-    name: nginx
-    enabled: true
-  become: true
-
 - name: Nginx config
   template:
     src: files/nginx.conf
-    dest: /etc/nginx/nginx.conf
-    mode: "0600"
+    dest: /etc/nginx/http.d/downloads.conf
+    mode: "0644"
   become: true
-  notify: restart nginx
+  notify: reload nginx