On local currency accounts, te most prominent button is the pay button.
If you want to send money to your bunq account, you shouldn't use this button, as it will initiate a SWIFT transfer that will fail because it's in a foreign currency, which takes days.
Proposed solutions:
A. move the convert button to the 3 buttons at the bottom, possibly exchanging place with the pay button.
B. Automatically recognize that you're sending money to your own account, and redirect to or initiate the actions of the convert component.