feat: add config load/fail toasts

modules/ConfigToasts.qml

@@ -0,0 +1,31 @@
+import QtQuick
+import Quickshell
+import Caelestia
+import Caelestia.Config
+
+Scope {
+    Connections {
+        function onLoaded(): void {
+            if (GlobalConfig.utilities.toasts.configLoaded)
+                Toaster.toast(qsTr("Config loaded"), qsTr("Config loaded successfully!"), "rule_settings");
+        }
+
+        function onLoadFailed(error: string): void {
+            Toaster.toast(qsTr("Failed to read config file"), error, "settings_alert", Toast.Warning);
+        }
+
+        function onSaveFailed(error: string): void {
+            Toaster.toast(qsTr("Failed to save config"), error, "settings_alert", Toast.Error);
+        }
+
+        target: GlobalConfig
+    }
+
+    Connections {
+        function onLoadFailed(error: string): void {
+            Toaster.toast(qsTr("Failed to read token config file"), error, "settings_alert", Toast.Warning);
+        }
+
+        target: TokenConfig
+    }
+}

shell.qml

@@ -19,6 +19,7 @@ ShellRoot {
         id: lock
     }
 
+    ConfigToasts {}
     Shortcuts {}
     BatteryMonitor {}
     IdleMonitors {