chore: remove on blur event for amount update

[thelostone-mc]

Description

can’t fund an issue with exactly 15 ETH which is a small, random issue

• removes blue events to ensure while tabbing token amount / usd amount don't change

https://share.vidyard.com/watch/gFMn84vzHT6tHBrTfWC6ik?

[codecov]

Codecov Report

Merging #5266 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #5266   +/-   ##
=======================================
  Coverage   29.89%   29.89%           
=======================================
  Files         230      230           
  Lines       18997    18997           
  Branches     2709     2709           
=======================================
  Hits         5680     5680           
  Misses      13080    13080           
  Partials      237      237

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