Fix manifest

Author: Serg Bugayov

corvet/light-field-bundle/1.0/manifest.json

@@ -4,15 +4,10 @@
             "all"
         ]
     },
-    "importmap": {
-        "flatpickr": {
-            "version": "4.6.13"
-        },
-        "inputmask": {
-            "version": "5.0.9"
-        }
-    },
     "copy-from-recipe": {
         "config/": "%CONFIG_DIR%/"
+    },
+    "composer-scripts": {
+        "corvet:install": "symfony-cmd"
     }
-}
+}