Give reminders an indicator and a full QS flow

shell/plugins/reminders/manifest.json

@@ -0,0 +1,15 @@
+{
+  "schemaVersion": 1,
+  "id": "omarchy.reminders",
+  "name": "Reminders",
+  "version": "1.0.0",
+  "author": "Omarchy",
+  "description": "Interactive reminder setup flow",
+  "kinds": [
+    "overlay"
+  ],
+  "keepLoaded": true,
+  "entryPoints": {
+    "overlay": "ReminderFlow.qml"
+  }
+}