[trello.com/c/FUnqFz3u] UI: Update dialog when sending coins

[Lainaaa]

Check list:

• You cannot try to start a chat with an uninitialised account with using QR reader.
• Update the pop-up text "Failed to obtain the user's {crypto} wallet address"
• Update the text of the pop-up window "The recipient does not have a public {crypto} wallet"
• When sending ADM, check whether the account has been initialised or not.

How to test

• Make sure that all logic chained with QR camera works properly
• Make sure that pop-up text is right

Checking account initializing approach description:

Previously, if the account was dummy it was saved to the local storage and never was checked again. However, every new account has a intermediate state being dummy (because we check it by containing public key).
So my solution was to recheck again if account is dummy and update saved one if needs.