Refactor: Migrate deprecated Ansible facts to ansible_facts[] syntax

Why:
- Ansible 2.20+ deprecates INJECT_FACTS_AS_VARS and direct usage of top-level ansible_* facts.
- This change updates all affected roles and vars files to the new supported syntax.
- Ensures compatibility with upcoming Ansible 2.24 removal of implicit fact injection.

Conversation reference:
https://chatgpt.com/share/692f639b-1380-800f-9f18-732f7108e9e2

roles/desk-copyq/tasks/main.yml

@@ -5,14 +5,14 @@
 
 - name: Ensure autostart directory exists
   file:
-    path: "{{ ansible_env.HOME }}/.config/autostart"
+    path: "{{ ansible_facts['env']['HOME'] }}/.config/autostart"
     state: directory
     mode: '0755'
   become: false
 
 - name: Add CopyQ to user autostart
   copy:
-    dest: "{{ ansible_env.HOME }}/.config/autostart/copyq.desktop"
+    dest: "{{ ansible_facts['env']['HOME'] }}/.config/autostart/copyq.desktop"
     content: |
       [Desktop Entry]
       Type=Application