Heroku stack update and package.json updates

[grumpyinca]

Following publication of ODOP version 5.1, the client package.json file is in need of update and cleanup. This includes:

1. move patch-package and react-app-rewired from "devDependencies" to "dependencies"
2. Align the Heroku environment variables between staging and production

Any other items ?

The possibility of releasing these changes as a version 5.1.1 was briefly considered.

[1fifoto]

We have agreed that staging's and production's NODE_ENV is to be set always to 'production' in its Setting's config variables

[1fifoto]

The current staging's and production's config variable NPM_CONFIG_PRODUCTION is set to 'false'.

[1fifoto]

We need to include updating the Heroku stack from Heroku-22 to Heroku-24.

We need still to test moving patch-package and react-app-rewired from "devDependencies" to "dependencies". If successful, then we need to remove NPM_CONFIG_PRODUCTION='false' (or set it to 'true').