fix(shell): repair dead forceMonitor setting + guard HA tile null-deref

- notifications config block was named 'monitor' but the NotificationPopup widget
  and the Settings -> Interface controls all read 'forceMonitor' — so the setting
  did nothing and the popup logged a null-deref every frame. Rename to forceMonitor.
- HomeAssistantPanel.hasDetail/iconFor split a null entityId during Repeater
  construction; guard both for a null modelData.

Author: AndrewDemsDS

quickshell/ii/modules/common/Config.qml

@@ -399,9 +399,13 @@ Singleton {
 
             property JsonObject notifications: JsonObject {
                 property int timeout: 7000
-                property JsonObject monitor: JsonObject {
+                // Pin notification popups to a specific monitor. Named forceMonitor to match the
+                // NotificationPopup widget and the Settings → Interface controls (the old name
+                // "monitor" matched nothing, so the setting was dead and the widget logged a
+                // null-deref every frame).
+                property JsonObject forceMonitor: JsonObject {
                     property bool enable: false
-                    property string name: "" // Name of the monitor to show notifications on, like "eDP-1". Find out with 'hyprctl monitors' command
+                    property string name: "" // Monitor to pin popups to, like "eDP-1". Find with 'hyprctl monitors'
                 }
             }
 

quickshell/ii/modules/ii/sidebarLeft/homeAssistant/HomeAssistantPanel.qml

@@ -16,6 +16,8 @@ Item {
 
     // Entities that have sub-controls worth an expand affordance.
     function hasDetail(entityId) {
+        if (!entityId)
+            return false; // delegate modelData is transiently null during Repeater construction
         const d = entityId.split(".")[0];
         if (d === "climate" || d === "media_player" || d === "fan" || d === "cover" || d === "vacuum")
             return true;
@@ -25,6 +27,8 @@ Item {
     }
 
     function iconFor(entityId) {
+        if (!entityId)
+            return "help"; // delegate modelData is transiently null during Repeater construction
         const d = entityId.split(".")[0];
         switch (d) {
         case "light":