TypeScript templates should have read-only props

[hamirmahal]

Verify canary release

• I verified that the issue exists in the latest Next.js canary release

Provide environment information

> next info


Operating System:
  Platform: linux
  Arch: x64
  Version: #38~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Thu Nov  2 18:01:13 UTC 2
Binaries:
  Node: 20.9.0
  npm: 10.1.0
  Yarn: N/A
  pnpm: N/A
Relevant Packages:
  next: 14.0.4-canary.12
  eslint-config-next: 14.0.3
  react: 18.2.0
  react-dom: 18.2.0
  typescript: 5.3.2
Next.js Config:
  output: N/A

Which example does this report relate to?

packages/create-next-app/templates/app-tw/ts/app/layout.tsx and packages/create-next-app/templates/app/ts/app/layout.tsx

What browser are you using? (if relevant)

No response

How are you deploying your application? (if relevant)

No response

Describe the Bug

TypeScript templates don't enforce Readonly props.

Expected Behavior

TypeScript templates should enforce Readonly props.

To Reproduce

npx create-next-app@latest # step 1
code packages/create-next-app/templates/app/ts/app/layout.tsx # step 2

Notice that packages/create-next-app/templates/app/ts/app/layout.tsx doesn't enforce Readonly props.

[github-actions]

This closed issue has been automatically locked because it had no new activity for 2 weeks. If you are running into a similar issue, please create a new issue with the steps to reproduce. Thank you.