Fix Portis bug

[seichris]

Describe the bug

• Cannot read property 'postMessage' of null when trying to register

More bugs

UI

• width doesnt scale down on mobile
• popup hides the image

UX

• Portis acts as a web3 provider even if there is no unlocked account
• Why is portis the primary option? (arguably less secure than metamask, imtoken. 100k less users. No public security audit, etc.)
• Chinese don't use email. All Chinese services use phone number as login. We don't want users to drop out because they dont use mail.
• Primary option right now is log-in. While all users in this situation would be new users.

Other

• needs Chinese translation
• portis legal terms?

Steps to Reproduce Claim link in wechat browser.

Expected behavior I made screens for all situations, with and without portis: https://github.com/RadiCards/radi.cards/issues/59

[seichris]

They are looking into the bug