chore: Reduce false positive errors in VS Code.

VS Code was listing 1000s of issues in the problems pane  because it was trying to "compile" all JavaScript files in place.

tsconfig.json

@@ -1,3 +1,5 @@
 {
-    "extends": "./tsconfig.base.json"
+    "extends": "./tsconfig.base.json",
+    "include": [],
+    "exclude": ["docs/**"]
 }