[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