Backfill pre-quattro hardware support and tmux fixes for existing installs

Existing quattro installs get sof-firmware, the Mesa Vulkan drivers,
the tmux terminal-features and pane-binding fixes, and the XPS 13 text
scaling via migration, while Omarchy 4 upgraders get the same hardware
support and scaling through omarchy-upgrade-to-quattro.

The Vulkan driver backfill adapts da46ad85 from master.

Co-authored-by: Sai Sridhar <tarrasridhar1154@gmail.com>
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

migrations/1784401744.sh

@@ -0,0 +1,35 @@
+echo "Backfill hardware support and tmux settings added before Omarchy quattro"
+
+tmux_config="$HOME/.config/tmux/tmux.conf"
+if [[ -f $tmux_config ]]; then
+  sed -i 's/^set -g terminal-features\[3\] "xterm-kitty:extkeys"$/set -ag terminal-features "xterm-kitty:extkeys"/' "$tmux_config"
+
+  if ! grep -q 'M-S-Enter' "$tmux_config"; then
+    sed -i '/^# Pane Controls$/a\bind -n M-Enter split-window -v -c "#{pane_current_path}"\nbind -n M-S-Enter split-window -h -c "#{pane_current_path}"\nbind -n M-Escape kill-pane\n' "$tmux_config"
+  fi
+
+  omarchy-restart-tmux
+fi
+
+hardware_packages=()
+if lspci | grep -qiE '(Multimedia audio controller|Audio device).*Intel' && omarchy-pkg-missing sof-firmware; then
+  hardware_packages+=(sof-firmware)
+fi
+if lspci | grep -iE '(VGA|Display).*Intel' >/dev/null && omarchy-pkg-missing vulkan-intel; then
+  hardware_packages+=(vulkan-intel)
+fi
+if lspci | grep -iE '(VGA|Display).*AMD' >/dev/null && omarchy-pkg-missing vulkan-radeon; then
+  hardware_packages+=(vulkan-radeon)
+fi
+if lspci | grep -iE '(VGA|Display).*Apple' >/dev/null && omarchy-pkg-missing vulkan-asahi; then
+  hardware_packages+=(vulkan-asahi)
+fi
+
+if (( ${#hardware_packages[@]} > 0 )); then
+  omarchy-pkg-add "${hardware_packages[@]}"
+  omarchy-state set reboot-required
+fi
+
+if omarchy-hw-match "DX13260"; then
+  gsettings set org.gnome.desktop.interface text-scaling-factor 0.95
+fi