added folding for def, renamed scope

Author: fdncred

language-configuration.json

@@ -26,5 +26,11 @@
         ["(", ")"],
         ["\"", "\""],
         ["'", "'"]
-    ]
+    ],
+    "folding": {
+        "markers": {
+            "start": "^def\\b",
+            "end": "^\\}"
+        }
+    }
 }

package.json

@@ -33,7 +33,7 @@
     "grammars": [
       {
         "language": "nushell",
-        "scopeName": "source.nu",
+        "scopeName": "source.nushell",
         "path": "./syntaxes/nushell.tmLanguage.json"
       }
     ],

syntaxes/nushell.tmLanguage.json

@@ -105,5 +105,5 @@
       }
     }
   },
-  "scopeName": "source.nu"
+  "scopeName": "source.nushell"
 }