Downgrades vscode.d.ts to address more VS Code versions.

extension/package.json

@@ -69,7 +69,7 @@
 		"@types/express": "^4.17.2",
 		"@types/serve-static": "^1.13.3",
 		"@types/node": "^13.7.1",
-		"@types/vscode": "1.42.0",
+		"@types/vscode": "^1.35.0",
 		"tslint": "^6.0.0",
 		"typescript": "^3.7.5",
 		"webpack": "^4.41.6",

yarn.lock

@@ -518,7 +518,7 @@
   dependencies:
     source-map "^0.6.1"
 
-"@types/vscode@1.42.0":
+"@types/vscode@^1.35.0":
   version "1.42.0"
   resolved "https://registry.yarnpkg.com/@types/vscode/-/vscode-1.42.0.tgz#0ad891a9487e91e34be7c56985058a179031eb76"
   integrity sha512-ds6TceMsh77Fs0Mq0Vap6Y72JbGWB8Bay4DrnJlf5d9ui2RSe1wis13oQm+XhguOeH1HUfLGzaDAoupTUtgabw==