Use @types/vscode-webview

extensions/markdown-language-features/preview-src/index.ts

@@ -10,8 +10,6 @@ import { getEditorLineNumberForPageOffset, scrollToRevealSourceLine, getLineElem
 import { getSettings, getData } from './settings';
 import throttle = require('lodash.throttle');
 
-declare let acquireVsCodeApi: any;
-
 let scrollDisabledCount = 0;
 const marker = new ActiveLineMarker();
 const settings = getSettings();

extensions/markdown-language-features/preview-src/tsconfig.json

@@ -8,5 +8,10 @@
 			"DOM",
 			"DOM.Iterable"
 		]
+	},
+	"typeAcquisition": {
+		"include": [
+			"@types/vscode-webview"
+		]
 	}
 }