next.js

6aafef38 - examples: improve DX while copying command to create new project (#73463)

examples: improve DX while copying command to create new project (#73463) ## Description Follow up #38410. Some examples remain the multiple commands in a single block, and we couldn't use copy button to select one line. With this change users would be able to copy the command (using their choice package manager) with a single click using the github copy feature. CC: @samcx ### Adding or Updating Examples - [x] The "examples guidelines" are followed from our contributing doc https://github.com/vercel/next.js/blob/canary/contributing/examples/adding-examples.md - [x] Make sure the linting passes by running `pnpm build && pnpm lint`. See https://github.com/vercel/next.js/blob/canary/contributing/repository/linting.md