💻 add roles of variables: stepper in for loops

[juliabolt]

I've added the stepper role, it works with for loops, but other kinds of steppers are not working yet.

Also started using labels so that the variable role names can be translated into the different languages (added the English myself, with container now called list and input instead of input constant).

How to test

Follow these steps to verify this PR works as intended:

• change the feature flag showRoles in debugging.ts to true
• go to Hedy level 11 and run this program (or something similar) in the debugger:

  for counter in range 1 to 10
  print counter
  print 'Ready or not. Here I come!'

• check that in the variables view, the role that is shown for the variable counter is stepper.

Checklist Done? Check if you have it all in place using this list: (mark with x if done)

• [ x] Contains one of the PR categories in the name
• [ x] Describes changes in the format above
• [ ] Links to an existing issue or discussion
• [ x] Has a "How to test" section

If you're unsure about any of these, don't hesitate to ask. We're here to help!

[juliabolt]

I'll try to make a cypress test an make the feature flag a variable in the environment in a new PR, to prevent this PR from becoming too big :)

[mergify[bot]]

Thank you for contributing! Your pull request is now going on the merge train (choo choo! Do not click update from main anymore, and be sure to allow changes to be pushed to your fork).

[Felienne]

Ah interesting... this one passes but the Weblate one is still broken, so maybe it was not the same issue?

[juliabolt]

yeah maybe it was another cypress test