Fix issues introduced with VS Code 1.23.0. (#1925)

Author: sean-mcmanus

Extension/package.json

@@ -32,7 +32,7 @@
     "multi-root ready"
   ],
   "categories": [
-    "Languages",
+    "Programming Languages",
     "Debuggers",
     "Formatters",
     "Linters",

Extension/src/Debugger/extension.ts

@@ -34,6 +34,7 @@ export function initialize(): void {
     configurationProvider.getConfigurationSnippets();
 
     const launchJsonDocumentSelector: vscode.DocumentSelector = [{
+        scheme: 'file',
         language: 'jsonc',
         pattern: '**/launch.json'
     }];