refactor(standardize): fix sudoers lecture syntax, extract ssh config, remove redundant os filters

roles/configuration/tasks/bootloader.yml

@@ -6,9 +6,9 @@
         configuration_use_efibootmgr: "{{ is_rhel | bool }}"
         configuration_efi_dir: "{{ partitioning_efi_mountpoint }}"
         configuration_bootloader_id: >-
-          {{ "ubuntu" if os | lower in ["ubuntu", "ubuntu-lts"] else os }}
+          {{ "ubuntu" if os in ["ubuntu", "ubuntu-lts"] else os }}
         configuration_efi_vendor: >-
-          {{ "redhat" if os | lower == "rhel" else os | lower }}
+          {{ "redhat" if os == "rhel" else os }}
         configuration_efibootmgr_cmd: >-
           /usr/sbin/efibootmgr -c -L '{{ os }}' -d "{{ install_drive }}" -p 1
           -l '\efi\EFI\{{ configuration_efi_vendor }}\shimx64.efi'
@@ -23,7 +23,7 @@
       changed_when: configuration_bootloader_result.rc == 0
 
     - name: Ensure lvm2 for non btrfs filesystems
-      when: os | lower == "archlinux" and system_cfg.filesystem != "btrfs"
+      when: os == "archlinux" and system_cfg.filesystem != "btrfs"
       ansible.builtin.lineinfile:
         path: /mnt/etc/mkinitcpio.conf
         regexp: "^(HOOKS=.*block)(?!.*lvm2)(.*)"
@@ -31,12 +31,12 @@
         backrefs: true
 
     - name: Regenerate initramfs
-      when: os | lower not in ["alpine", "void"]
+      when: os not in ["alpine", "void"]
       vars:
         configuration_initramfs_cmd: >-
           {{
             '/usr/sbin/mkinitcpio -P'
-            if os | lower == "archlinux"
+            if os == "archlinux"
             else (
               '/usr/bin/env PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin '
               + '/usr/sbin/update-initramfs -u -k all'
@@ -51,7 +51,7 @@
     - name: Generate grub config
       vars:
         configuration_efi_vendor: >-
-          {{ "redhat" if os | lower == "rhel" else os | lower }}
+          {{ "redhat" if os == "rhel" else os }}
         configuration_grub_cfg_cmd: >-
           {{
             '/usr/sbin/grub2-mkconfig -o '