[Cashtab] word-break fix for tokens with very long names
Summary: Add word-break: break-all for elements that may display token name
Test Plan:
npm test
no overflow for long token names:
Reviewers: #bitcoin_abc, emack
Reviewed By: #bitcoin_abc, emack
Subscribers: emack
Differential Revision: https://reviews.bitcoinabc.org/D16113