It is not clear donating tokens require 2 txs

[vojtechsimetka]

This is UX nightmare that even I struggle with. When donating tokens, it require 2 transactions but after clicking the first one nothing happens until the transaction is mined. This takes up to 2 minutes on RSK.

If time permits we should dim the screen with a msg similar to the signin.

It could even have a progress info like:

• [done] Authorize spender transaction clicked
• [pending] Transfer clicked