fix(ansible): use zsh-style conditionals and quote variables

- Replace bash-style `! [ -z $1 ]` with zsh-native `[[ -n "$1" ]]`
- Quote $1 variable in ansible-galaxy init and tree calls to handle
  role names with spaces correctly
- Add missing space before function parentheses for consistent style

plugins/ansible/ansible.plugin.zsh

@@ -4,10 +4,10 @@ function ansible-version(){
 }
 
 function ansible-role-init() {
-    if ! [ -z $1 ] ; then
+    if [[ -n "$1" ]]; then
         echo "Ansible Role : $1 Creating...."
-        ansible-galaxy init $1
+        ansible-galaxy init "$1"
-        tree $1
+        tree "$1"
     else
         echo "Usage : ansible-role-init <role name>"
         echo "Example : ansible-role-init role1"