add peer dependency check

scripts/prepublish-checks.mjs

@@ -3,6 +3,8 @@
 import boxen from "boxen";
 import dedent from "dedent";
 import { readFile } from 'fs/promises';
+import { globalPackages as globalManagerPackages } from "@storybook/manager/globals";
+import { globalPackages as globalPreviewPackages } from "@storybook/preview/globals";
 
 const packageJson = await readFile('./package.json', 'utf8').then(JSON.parse);
 
@@ -55,4 +57,30 @@ if ((await $`cat README.md | grep -E ${readmeTestStrings}`.exitCode) == 0) {
   exitCode = 1;
 }
 
+/**
+ * Check that globalized packages are not incorrectly listed as peer dependencies
+ */
+const peerDependencies = Object.keys(packageJson.peerDependencies || {});
+const globalPackages = [...globalManagerPackages, ...globalPreviewPackages];
+peerDependencies.forEach((dependency) => {
+  if(globalPackages.includes(dependency)) {
+    console.error(
+      boxen(
+        dedent`
+          ${chalk.red.bold("Unnecessary peer dependency")}
+  
+          ${chalk.red(dedent`You have a peer dependency on ${chalk.bold(dependency)} which is most likely unnecessary
+          as that is provided by Storybook directly.
+          Check the "bundling" section in README.md for more information.
+          If you are absolutely sure you are doing it correct, you should remove this check from scripts/prepublish-checks.mjs.`)}
+        `,
+        { padding: 1, borderColor: "red" }
+      )
+    );
+
+    exitCode = 1;
+
+  }
+})
+
 process.exit(exitCode);