refactor ♻️: Refactor task names and update module references in fail2ban.yml

This commit refactors the task names and updates module references in the `fail2ban.yml` file to improve clarity and consistency. It also includes minor text adjustments in `meta/fail2ban.md` to enhance readability and ensure accurate variable descriptions with updated default values.

tasks/fail2ban.yml

@@ -8,7 +8,7 @@
 #################################################
 
 - name: fail2ban | Detect Proxmox
-  stat:
+  ansible.builtin.stat:
     path: /usr/bin/pveversion
   register: pve_installed
 
@@ -80,7 +80,6 @@
 - name: fail2ban | Configure Fail2Ban jails
   ansible.builtin.blockinfile:
     dest: /etc/fail2ban/jail.local
-    create: true
     marker: "# {mark} ANSIBLE MANAGED BLOCK - PROXMOX"
     block: |
       # jail.conf (default)
@@ -238,7 +237,7 @@
 # Deploy cluster-aware Fail2Ban action
 #################################################
 
-- name: fail2ban-fw | Deploy proxmox-fw action
+- name: fail2ban | Deploy proxmox-fw action
   ansible.builtin.copy:
     dest: /etc/fail2ban/action.d/proxmox-fw.conf
     owner: root