Use ~/.wireguard as softlink to /etc/wireguard

In an effort to backup only the home directory, move wireguard folder to
home and softlink it.

ansible/arch_developer_tools/tasks/main.yml

@@ -175,8 +175,13 @@
     name:  wireguard-tools
     state: present
   become: yes
-- name: Ensure /etc/wireguard directory
+- name: Ensure /home/ducoterra/.wireguard directory
   file:
-    path: /etc/wireguard
+    path: /home/ducoterra/.wireguard
     state: directory
+- name: Link /home/ducoterra/.wireguard /etc/wireguard
+  ansible.builtin.file:
+    src: /home/ducoterra/.wireguard
+    dest: /etc/wireguard
+    state: link
   become: yes