feat(icons): add greenlight (#1275)

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

tree.json

@@ -746,6 +746,7 @@
         "graylog.png",
         "greenbone-light.png",
         "greenbone.png",
+        "greenlight.png",
         "grimoire.png",
         "grist.png",
         "grocy.png",
@@ -4778,6 +4779,7 @@
         "graylog.webp",
         "greenbone-light.webp",
         "greenbone.webp",
+        "greenlight.webp",
         "grimoire.webp",
         "grist.webp",
         "grocy.webp",