fix multiple click on qty inputs arrows

Status Job ID Name Coverage
  Test
failed #1649
lint:js

00:18

passed #1650
unit:django

01:00

 
Test lint:js
npm ERR! 
npm ERR! Failed at the third-party@1.0.0 lint script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR! /root/.npm/_logs/2021-07-21T09_07_28_908Z-debug.log
Makefile:9: recipe for target 'lint-js' failed
make: *** [lint-js] Error 1
ERROR: Job failed: exit code 1