Website Accessibility bucket: Update multi-lingual criteria

[L-e-N]

Currently 'get_random_value'
There is no canonic way to check if a website is multi lingual, and I don't think Lighthouse can check it.

[L-e-N]

Currently:
Several OR conditions based on the html content.
Unehopefully there is no canonic way to check if a website is multi lingual, and I don't think Lighthouse can check it. So I think right now the best way to make it better is to add more OR conditions, such as url modification to modify the language.