E2E Multi-browser + Mobile support

[gbarkhatov]

• Get the requirements about what browser do we need to support
• Adjust tests locators to support the mobile browsers: https://i.imgur.com/ZzfPQcE.png https://i.imgur.com/K0M56Ze.png

[jrwbabylonlab]

@gbarkhatov is in todo or already in review? if in todo, i would recommend we remove it from cap 3 and deal with it later

[gbarkhatov]

@jrwbabylonlab this is only to be made once the huge #193 is merged
All of the other (besides #193) E2E related PRs are considered improvements

[jrwbabylonlab]

@gbarkhatov could i move this out of the cap 3 timeline goal? None of the e2e tests code will be released as part of cap 3 anyway

[gbarkhatov]

@jrwbabylonlab sure