[Cashtab] Lessen spacing between from and contactName in Tx.js
[Cashtab] Lessen spacing between from and contactName in Tx.js

Summary: Spacing between 'From' and 'contactName' is too wide on some screens and has been reduced in this diff. Related to T2759.

Test Plan:
cd web/cashtab && npm start
ensure there is a tx in recent tx history from a contact
observe that the spacing between 'from' and 'contactName' has been lessened

Reviewers: bytesofman, #bitcoin_abc

Reviewed By: bytesofman, #bitcoin_abc

Differential Revision: https://reviews.bitcoinabc.org/D12383

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