[Cashtab] Show the normal list workflow for XECX from the list option

Summary:
Users attempting to list XECX will see the "Redeem XECX?" confirmation modal due to a conditional rendering error. If the user has not selected the redeem XECX options, they should not see that modal.

Patch.

Test Plan:
npm test

npm start and list XECX. See the normal list modal and not the redeem modal.

this diff is live at https://cashtab-local-dev.netlify.app/

Reviewers: #bitcoin_abc, PiRK

Reviewed By: #bitcoin_abc, PiRK

Differential Revision: https://reviews.bitcoinabc.org/D17854