Update Yarn scripts to work on Yarn Modern

Convert "format" into a global script that can be run from any project.

Author: wimpyprogrammer

package.json

@@ -6,10 +6,10 @@
     "demo"
   ],
   "scripts": {
-    "build": "yarn workspaces run build",
-    "format": "prettier --write .",
+    "build": "yarn workspaces foreach --all run build",
+    ":format": "prettier --write .",
     "lint": "yarn workspaces foreach --all run lint",
-    "test": "yarn workspaces run test"
+    "test": "yarn workspaces foreach --all run test"
   },
   "devDependencies": {
     "@typescript-eslint/eslint-plugin": "^5.6.0",