add tailwindcss for macos

tasks/pkgs/tailwindcss.yml

@@ -0,0 +1,7 @@
+# vim: set filetype=yaml.ansible :
+---
+- name: Append tailwindcss to pkg_sys
+  when:
+    - ansible_system == 'Darwin'
+  ansible.builtin.set_fact:
+    pkg_sys: "{{ pkg_sys + ['tailwindcss'] }}"