Fonts + kitty config in the desktop

- tanin-eww: ship Fuji kitty.conf into skel (~/.config/kitty)
- add missing font deps to tanin-eww + tanin-desktop:
  ttc-iosevka-aile (bar's 'Iosevka Aile' UI font) + ttf-nerd-fonts-symbols
  ('Symbols Nerd Font' icon fallback). ttf-iosevka-nerd covers kitty.
- start archiso profile under iso/ (releng-base + overrides; systemd-boot,
  btrfs+snapshots, plymouth, linux-zen, Calamares clone-install)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

iso/overrides/airootfs/etc/systemd/system/getty@tty1.service.d/autologin.conf

@@ -0,0 +1,3 @@
+[Service]
+ExecStart=
+ExecStart=-/usr/bin/agetty --autologin root --noclear %I 38400 linux