Revert "remove this"

This reverts commit 885df39.

Author: Cattn

client/src/lib/components/Settings.svelte

@@ -211,10 +211,13 @@
         notificationsDisabled = disabled;
         try {
             if (disabled) {
-                
+                await API.setGlobalCalendarPreference({ reminder_settings: [] });
                 snackbar('All notifications disabled', undefined, true);
             } else {
-
+                await API.setGlobalCalendarPreference({
+                    reminder_settings: [{ time: "30", type: "minutes", method: "notification" }]
+                });
+                snackbar('Default notifications restored (30 min before)', undefined, true);
             }
         } catch (e) {
             console.error('Failed to update notification settings:', e);