Description

Currently the VE fallback strategy is the same as the Default View strategy (uses same store methods):

1. show labels in user language, if not
2. show labels in closest available fallback, if not;
3. show labels in any available language

However, showing arbitrary languages is often confusing. We want to implement a different fallback strategy so that:

• Wikipedia users can understand the labels and how to use functions;
• Wikipedia users understand that there are missing labels and they can contribute to their translation

Desired behavior/Acceptance criteria

• All labels have lang and dir html attributes
• Fallback language strategy must apply to the "Function call information popup" and the dialogs "(1) Function selection" and "(2) Function call setup"
• For information popup:
  • Function name:
  • Function description:
• For (1) Function selection dialog:
  • Function name:
  • Function description:
• For (1) Function selection dialog:
  • Function input labels:
  • (if any) Enum dropdown labels:

Completion checklist

• Before closing this task, review one by one the checklist available here: https://www.mediawiki.org/wiki/Abstract_Wikipedia_team/Definition_of_Done#Front-end_Task/Bug_Completion_Checklist