Replace mako with quickshell-backed notification daemon

Adds first-party omarchy.notifications service plugin that hosts a
freedesktop notification server and renders popups + a history popup
inside the shell. Uninstalls mako and retargets every helper, keybind,
indicator, and migration entry to the new daemon.

Plugin (default/quickshell/omarchy-shell/plugins/notifications/):
- Service.qml: NotificationServer, popupModel + pendingModel + pastModel
  (two-tier history, see below), DND via PersistentProperties +
  cache-file backstop, image cache for /tmp screenshots, IpcHandler with
  toggleDnd/setDnd/isDnd/showHistory/clear/clearPending/markAllSeen/
  dismissAll/dismissOne/invokeLast/dismiss, per-theme override file
  ~/.config/omarchy/current/theme/notifications.json honoring
  borderColor/backgroundColor/textColor/countdownColor.
- components/NotificationCard.qml: theme-driven card (Color.foreground/
  background/border tokens from Commons/Color.qml), 32x32 icon slot,
  Nerd Font glyph fallback via omarchy-glyph hint, hero image strip
  for screenshot/image-path notifications, hover-pause progress bar,
  uses bar.fontFamily so all surfaces share one font.

Filtering and DND:
- transient hint and CLI-style senders (app_name in notify-send /
  omarchy-action) bypass history but still pop.
- DND only allows omarchy-action toasts and notify-send -u critical
  through; real-app urgency=critical (Discord, Slack, Vesktop) is
  silenced and lands in pending instead.
- Pending vs past split surfaced via tabs in the bar widget popup;
  past tab is auto-pruned at the 15-minute mark.
- Click-to-jump: notifications without a libnotify default action focus
  the matching Hyprland window via class lookup.

Shell host:
- shell.qml: generic first-party service loader (mirrors the existing
  noctalia-compat path) and an alias for the bar so plugins can read
  barSize / barHidden / position for anchoring.
- Commons/Color.qml: parses the theme's hyprland.conf for
  $activeBorderColor so notifications match Hyprland window borders;
  picks the explicit accent= key over the color4= alias.

Bar widget rebase (plugins/bar/widgets/notificationCenter.qml):
- Drops the chunk-1 stub server, binds count/dnd state to the service,
  hosts the history popup via PopupCard so it drops down from the
  notification glyph the same way Quick Settings does.
- Pending/Past tabs, dismiss-individual close X, mark-all-as-seen and
  clear-recent action buttons, theme-driven palette.

Quick Settings rework (plugins/bar/widgets/controlCenter.qml):
- DND tile binds directly to service.doNotDisturb for instant feedback.
- Drops the volume slider (already in audioPanel) and the no-op Theme
  tile; adds a Bluetooth toggle bound to Quickshell.Bluetooth.
- Bigger 44x44 wallet was scaled back to 32x32 for tighter rows.

Notification scripts (bin/omarchy-*):
- omarchy-notification-send: passes glyph as a custom hint instead of
  prepending to the summary; adds -a omarchy-action and -u urgency
  automatically; supports -e/--transient passthrough.
- User-action toasts in the capture / toggle / hyprland / default-*
  scripts and bindings/utilities.lua now tag themselves
  -a omarchy-action so DND treats them as intent-based bypass.
- omarchy-toggle-notification-silencing, omarchy-notification-dismiss,
  default/waybar/indicators/notification-silencing.sh, and the Hyprland
  comma-keybinds all route through omarchy-shell-ipc notifications.
- omarchy-capture-screenshot / -screenrecording set the image-path
  hint properly so the hero-image rendering kicks in.

Mako removal (migrations/1778743515.sh):
- pkill -x mako, systemctl --user stop mako.service, pacman -Rns mako
  (uninstalling deletes /usr/lib/systemd/user/mako.service so D-Bus
  activation can't respawn it). Removes ~/.config/mako/ and the legacy
  toggle file. Restarts quickshell so it claims the bus name.
- Drops mako from install/omarchy-base.packages, autostart.lua,
  install/config/theme.sh + toggles.sh, default/themed/mako.ini.tpl,
  default/mako/, the omarchy-menu Mako restart row, bin/omarchy
  GROUP_DESCRIPTIONS, the settings panel catalogue, and the
  default/omarchy-skill paths table.
- Removed scripts: bin/omarchy-restart-mako,
  bin/omarchy-style-corners-mako.
- bin/omarchy-style-corners summary updated; corner radius for the
  notification card reads ~/.local/state/omarchy/toggles/quickshell-menu.json
  alongside the rest of the shell.

default/omarchy-skill/SKILL.md

@@ -3,7 +3,7 @@ name: omarchy
 description: >
   REQUIRED for end-user customization of Linux desktop, window manager, or system config.
   Use when editing ~/.config/hypr/, ~/.config/waybar/, ~/.config/walker/,
-  ~/.config/alacritty/, ~/.config/foot/, ~/.config/kitty/, ~/.config/ghostty/, ~/.config/mako/,
+  ~/.config/alacritty/, ~/.config/foot/, ~/.config/kitty/, ~/.config/ghostty/,
   or ~/.config/omarchy/. Triggers: Hyprland, window rules, animations, keybindings,
   monitors, gaps, borders, blur, opacity, waybar, walker, terminal config, themes,
   background, night light, idle, lock screen, screenshots, reminders, layer rules,
@@ -23,7 +23,7 @@ It is not for contributing to Omarchy source code.
 **ALWAYS invoke this skill for end-user requests involving ANY of these:**
 
 - Editing ANY file in `~/.config/hypr/` (window rules, animations, keybindings, monitors, etc.)
-- Editing ANY file in `~/.config/waybar/`, `~/.config/walker/`, `~/.config/mako/`
+- Editing ANY file in `~/.config/waybar/`, `~/.config/walker/`
 - Editing terminal configs (alacritty, foot, kitty, ghostty)
 - Editing ANY file in `~/.config/omarchy/`
 - Window behavior, animations, opacity, blur, gaps, borders
@@ -79,7 +79,6 @@ Omarchy is built on:
 | **Waybar** | Status bar | `~/.config/waybar/` |
 | **Walker** | App launcher | `~/.config/walker/` |
 | **Alacritty/Foot/Kitty/Ghostty** | Terminals | `~/.config/<terminal>/` |
-| **Mako** | Notifications | `~/.config/mako/` |
 | **SwayOSD** | On-screen display | `~/.config/swayosd/` |
 
 ## Command Discovery