Ensure the user understand the transaction is being processed

[ValentinTrinque]

the user is not waiting for the node resolution, but since there is no spiner, and the buttons are not disabled, he thinks it doesn’t work

Also, not disabling those button and allowing the user to spam the communication channel can lead to internal errors.

disabling the button, and adding a spinner will do

Reference:

• https://github.com/vegaprotocol/feedback/discussions/124

[ValentinTrinque]

Done in:

• https://github.com/vegaprotocol/vegawallet-desktop/pull/624