[explorer] Massage column priority in the address history

Summary:
So we don't miss the token output by default. Lower value means higher display prority.
Also fixes the token ticker link which is broken.

Test Plan:

cargo run

Reviewers: #bitcoin_abc, PiRK

Reviewed By: #bitcoin_abc, PiRK

Differential Revision: https://reviews.bitcoinabc.org/D15978