Data input validation (all applicable screens)

[kentdahlgren]

Feature / Issue

The app must validate input to ensure the user doesn't add a value which could corrupt the Dapp or circumvent security

Acceptance criteria

See if we can get a review from Mawo, but reference this:

https://www.owasp.org/index.php/Input_Validation_Cheat_Sheet

Additional information

[kentdahlgren]

I believe this is basically a non-functional requirement for all developers. Right?

[seland]

@borjantrajanoski This one looks more like a convention, not like an issue. I suggest to move it to Readme and close.