Change buttons for the login flow on TRON pool

[0xdeval]

What to do?

The idea is to decrease the number of clicks for creating zkBob account

For this reason, we need to:

1. Add one more button to the login page: "Get instant wallet"
   • By clicking on the button, we'll ask a user to create a password for his zkAccount. The rest of the process is as it is right now
2. Rename the "Create new zkAccount" button to "Create zkAccount with TronLink"
   • By clicking on this button, the TronLink wallet should be opened. The rest of the process as it is right now

So, the initial login/signup should be the following 👇