Giveth-dapp: Some keystore files dont work in our DApp

[GriffGreen]

This can be a huge issue... some key files look like

{"version":3,"...,"Crypto":{"ciphertext":...}}

And some look like:

{"version":3,"...,"crypto":{"ciphertext":...}}

Notice the lower case or upper case c....

Only the ones with a lowercase c work

[vojtechsimetka]

fixed