More minor playwright performance improvements

[djahandarie]

A few more minor playwright performance improvements:

• Reduce the viewport size on popup screenshots so they execute faster (and it also makes the results easier to read)
• Split the two big dictionary loads into separate tests so they can be executed in parallel

This is expected to change playwright results since the viewport size is different, and also the number of remaining dictionaries after the swedish delete is different (0 instead of 1)

[github-actions]

⚠️ Visual changes detected by playwright; please check the report to verify if they are desirable.