Fix /.well-known/matrix/client installation

Regression since 51312b82

roles/matrix-base/tasks/setup_well_known.yml

@@ -15,7 +15,7 @@
 - name: Ensure Matrix /.well-known/matrix/client configured
   template:
     src: "{{ role_path }}/templates/static-files/well-known/matrix-client.j2"
-    dest: "{{ matrix_static_files_base_path }}/.well-known/matrix"
+    dest: "{{ matrix_static_files_base_path }}/.well-known/matrix/client"
     mode: 0644
     owner: "{{ matrix_user_username }}"
-    group: "{{ matrix_user_username }}"
+    group: "{{ matrix_user_username }}"