Fix jinja2 white spaces issues reported by ansible-lint

This replaces double spaces by single spaces, fixes spaces in slices,
adds spaces before brackets and fixes bracket placing in when clauses.

tests/user/test_users_absent.yml

@@ -14,7 +14,7 @@
 
   - name: Create dict with user names
     ansible.builtin.set_fact:
-      user_names: "{{ user_names | default([]) + [{ 'name': item.name }] }}"
+      user_names: "{{ user_names | default([]) + [{'name': item.name}] }}"
     loop: "{{ users }}"
 
   - name: Users absent len:{{ users | length }}