Implement the new App uuid system

[teolemon]

What

• Implement the new App uuid system
  • app_name
  • app_version
  • app_uuid
• Deprecate the equivalent using comment=

For further details and potential questions, see: openfoodfacts/openfoodfacts-server#6319

Part of

• What can I work on ? #4169

[VaiTon]

@teolemon What should we use as app_uuid?

[teolemon]

@VaiTon the same that we pass in the comment field during edit

openfoodfacts-androidapp/app/src/main/java/openfoodfacts/github/scrachx/openfood/utils/InstallationUtils.kt

Line 30 in 2dcc1c8

private fun writeInstallationFile(installation: File) {

[VaiTon]

We pass that if the user is not logged in. It's more a user uuid than an app uuid.