[Cashtab] Render a token info page for any tokenId, regardless of user balance

Summary: We want users to be able to share tokens by sharing a landing page. Going forward, will add orderbook for this token (if present).

Test Plan: npm test

Reviewers: #bitcoin_abc, emack

Reviewed By: #bitcoin_abc, emack

Subscribers: emack

Differential Revision: https://reviews.bitcoinabc.org/D17045