feat(icons): add uncomplicated-alert-receiver (#1171)

Co-authored-by: Dashboard Icons Manager <193821040+dashboard-icons-manager[bot]@users.noreply.github.com>

tree.json

@@ -1999,6 +1999,7 @@
         "umami.png",
         "umbrel.png",
         "unbound.png",
+        "uncomplicated-alert-receiver.png",
         "undb.png",
         "unifi-controller.png",
         "unifi-dark.png",
@@ -3817,6 +3818,7 @@
         "umami.svg",
         "umbrel.svg",
         "unbound.svg",
+        "uncomplicated-alert-receiver.svg",
         "undb.svg",
         "unifi-dark.svg",
         "unifi-voucher-site.svg",
@@ -5978,6 +5980,7 @@
         "umami.webp",
         "umbrel.webp",
         "unbound.webp",
+        "uncomplicated-alert-receiver.webp",
         "undb.webp",
         "unifi-controller.webp",
         "unifi-dark.webp",