feat: migrate from archiso to artools — are you threatening me in SKECHERS?!

Strip out archiso (airootfs, efiboot, syslinux, mkarchiso, prepare.sh,
Dockerfile, mirrorlist, profiledef.sh, packages.x86_64, reset.sh,
run_before_squashfs.sh) and adopt artools buildiso with full antergos
iso-profiles. Bitch, you NEED therapy.

Are you threatening me?
- 154 files changed, 2804 insertions, 7352 deletions
- buildiso wrapper + iso-profiles/antergos/ (profile.yaml, root-overlay,
  live-overlay) + iso-profiles/common/common.yaml
- pacman.conf.d/iso-x86_64.conf with antergos-pkgs repo first

...Are you THREATENING me in SKECHERS?!
- Calamares offline + online module dirs, antergos-next branding
- componentName must match dir or Branding.cpp goes full T-square
- calamares before calamares-branding-antergos-next so --overwrite='*'
  wins correctly. YOU'RE ON YOUR FOURTH WIFE RIGHT NOW-
- calamares-next.desktop in live-overlay (/usr/share + /etc/skel/Desktop)
- netinstall.yaml bundled. No remote deps. Kill that bitch (Cnchi).

What fuckin' college would care if you drew some bullshit picture
about your feelings?
- CI: artixlinux/artixlinux:base container, install artools, buildiso -p
  antergos, IA upload with collection=open_source_software. Class is in
  session. Maybe I should grow 40 feet! Then you'd REALLY like me!
- IA: mediatype=software keeps us out of Community Texts jail. The
  question is; what's this stick gonna do?

It's honestly super humbling, when the trashiest repo you know;
probably coked out of its mind... says the most thoughtful thing
you've done in years.
- README.md rewritten with Artix/OpenRC/KDE badges, build instructions,
  migration notes. Nice SpongeBob impression. ...Nice SpongeBob impression.
- AGENTS.md updated (identity ritual, gotchas, commands, repo layout)
- Restore LICENSE, NOTICES, APOLOGY.txt, CHANGELOG.md from git history.
  Some files you just don't let die. No matter what, you NEVER use that
  N-word! (...should've said nothing.)
- .gitignore: work/ iso/ out/. Go work at Starbucks with your little apron.

So laugh all you want. Forget about me all you want. But at least
I'll be gorgeous forever. Mother, I'm in the SquashFS now.

Signed-off-by: Celestia Ludenberg <ash8820@proton.me>

iso-profiles/antergos/root-overlay/etc/default/grub

@@ -0,0 +1,53 @@
+GRUB_DEFAULT="0"
+GRUB_TIMEOUT="3"
+GRUB_DISTRIBUTOR="Artix"
+GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
+GRUB_CMDLINE_LINUX="net.ifnames=0"
+
+# Preload both GPT and MBR modules so that they are not missed
+GRUB_PRELOAD_MODULES="part_gpt part_msdos"
+
+# Uncomment to enable Hidden Menu, and optionally hide the timeout count
+#GRUB_HIDDEN_TIMEOUT="5"
+#GRUB_HIDDEN_TIMEOUT_QUIET="true"
+
+# Uncomment to use basic console
+GRUB_TERMINAL_INPUT="console"
+
+# Uncomment to disable graphical terminal
+#GRUB_TERMINAL_OUTPUT="console"
+
+# The resolution used on graphical terminal
+# note that you can use only modes which your graphic card supports via VBE
+# you can see them in real GRUB with the command `vbeinfo'
+#GRUB_GFXMODE="1680x1050x8"
+GRUB_GFXMODE="1024x768,800x600"
+
+# Uncomment to allow the kernel use the same resolution used by grub
+GRUB_GFXPAYLOAD_LINUX="keep"
+
+# Uncomment if you want GRUB to pass to the Linux kernel the old parameter 
+# format "root=/dev/xxx" instead of "root=/dev/disk/by-uuid/xxx" 
+#GRUB_DISABLE_LINUX_UUID="true"
+
+# Uncomment to disable generation of recovery mode menu entries
+GRUB_DISABLE_RECOVERY="true"
+
+# Uncomment and set to the desired menu colors.  Used by normal and wallpaper 
+# modes only.  Entries specified as foreground/background.
+export GRUB_COLOR_NORMAL="light-blue/black"
+export GRUB_COLOR_HIGHLIGHT="light-cyan/blue"
+
+# Uncomment one of them for the gfx desired, a image background or a gfxtheme
+#GRUB_BACKGROUND="/path/to/wallpaper"
+GRUB_THEME="/usr/share/grub/themes/artix/theme.txt"
+
+# Uncomment to get a beep at GRUB start
+#GRUB_INIT_TUNE="480 440 1"
+
+GRUB_SAVEDEFAULT="true"
+
+GRUB_DISABLE_LINUX_RECOVERY="true"
+
+# Probe for other installed operating systems
+GRUB_DISABLE_OS_PROBER="false"