feat: change ROOT variable to be package root rather than bin

packages/desktop-electron/bin/update-client

 #!/bin/bash -e
 
-ROOT=`dirname $0`
+ROOT=`dirname $0`/..
 
-rm -rf ${ROOT}/../client-build
-cp -r ${ROOT}/../../desktop-client/build ${ROOT}/../client-build
+rm -rf ${ROOT}/client-build
+cp -r ${ROOT}/../desktop-client/build ${ROOT}/client-build
 
 # Remove the embedded backend for the browser version. Will improve
 # this process
-rm -rf ${ROOT}/../client-build/data
-rm -rf ${ROOT}/../client-build/*kcab.*
-rm -rf ${ROOT}/../client-build/*.wasm
-rm -rf ${ROOT}/../client-build/*.map
+rm -rf ${ROOT}/client-build/data
+rm -rf ${ROOT}/client-build/*kcab.*
+rm -rf ${ROOT}/client-build/*.wasm
+rm -rf ${ROOT}/client-build/*.map