Have same browser config as extension config

Author: Kartik Raj

tsconfig.browser.json

@@ -1,8 +1,9 @@
 {
         "extends": "./tsconfig.json",
-        "include": [
-            "./src/client/browser",
-            "./types/vscode.proposed.d.ts",
-            "./src/client/common"
+        "exclude": [
+            "node_modules",
+            ".vscode-test",
+            ".vscode test",
+            "build"
         ]
 }