Unify internal monitor detection across scripts

Four scripts matched internal panels with contains("eDP") while
omarchy-monitor-state used test("^(eDP|LVDS|DSI)-"), so laptops with
LVDS or DSI panels were internal to monitor-state but invisible to the
clamshell, mirror, and external-active logic. All five sites now share
the inclusive anchored pattern.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

bin/omarchy-hyprland-monitor-clamshell

@@ -8,7 +8,7 @@ CLAMSHELL_FLAG="$TOGGLES_DIR/internal-monitor-clamshell.lua"
 MANUAL_DISABLE_FLAG="$TOGGLES_DIR/internal-monitor-disable.lua"
 SCALE_STATE="$TOGGLES_DIR/internal-monitor-scale"
 
-INTERNAL=$(hyprctl monitors all -j | jq -r '.[] | select(.name | contains("eDP")).name' | head -n 1)
+INTERNAL=$(hyprctl monitors all -j | jq -r '.[] | select(.name | test("^(eDP|LVDS|DSI)-")).name' | head -n 1)
 
 valid_scale() {
   [[ $1 =~ ^[0-9]+([.][0-9]+)?$ ]]