Add templates from the QA team to visual non-reg/error check of 3.15

[MathieuLamiot]

Context

Rocket-E2E has tests to cover visual regression and console errors for 3.15. However, the template(s) used there might not be up-to-date with the list of template from the QA team

What needs to be done

• Gather from the QA team the templates to test 3.15 against.
• Check with them if they are in the Rocket-E2E already or not.
• If not, add them.
• Run Rocket-E2E tests for 3.15 to ensure this is working properly and validate with the QA team.

Additional information
Please, consider teaming up with @hanna-meda to do this, to introduce her and guide her through Rocket-E2E.