feat(icons): add synology-vmm (#1026)

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

tree.json

@@ -1822,6 +1822,7 @@
         "synology-surveillance-station.png",
         "synology-text-editor.png",
         "synology-video-station.png",
+        "synology-vmm.png",
         "synology-webstation.png",
         "synology.png",
         "sysreptor.png",
@@ -5693,6 +5694,7 @@
         "synology-surveillance-station.webp",
         "synology-text-editor.webp",
         "synology-video-station.webp",
+        "synology-vmm.webp",
         "synology-webstation.webp",
         "synology.webp",
         "sysreptor.webp",