improve how theme are deployed

tasks/custom_themes.yml

@@ -39,14 +39,27 @@
   become_user: "{{ forgejo_user }}"
   tags: theme
 
-- name: "[THEME] - Find css files from different repos and copy them in the public folder"
-  shell:
-    cmd: find "{{ forgejo_theme_dir }}" -type f -name "*.css" -not -path "{{ forgejo_theme_dir }}/public/*" | xargs cp -t "{{ forgejo_theme_dir }}/public/assets/css"
-    chdir: "{{ forgejo_theme_dir }}"
+- name: "[THEME] - Find css files from different repos"
+  find:
+    paths: "{{ forgejo_theme_dir }}"
+    patterns: "*.css"
+    recurse: yes
+  register: css_files
+  tags: theme
+
+- name: "[THEME] - Copy css files to the public folder"
+  copy:
+    src: "{{ item.path }}"
+    dest: "{{ forgejo_theme_dir }}/public/assets/css/"
+    remote_src: yes
+    force: yes
+  with_items: "{{ css_files.files }}"
+  when: "'/public/' not in item.path"
   become: true
   become_user: "{{ forgejo_user }}"
   tags: theme
 
+
 # Lastly, update app.ini by adding the theme's name list.
 - name: "[THEME] - Get and prepare a list for app.ini of css files in public folder, register it"
   shell: