fix(util): restore scrolling after test executed.
fix(util): restore scrolling after test executed.

* The current test, was not restoring the scroll mask, which means, that we're not able to remove the scrollbars on the karma site.

This broke some positioning tests for `feat/panel`.

Closes #8206

Splaktar/material,graingert/material,DevVersion/material,acoreyj/material,epelc/material,epelc/material,welkinhealth/material,Frank3K/material,HipsterZipster/material,crisbeto/material,david-gang/material,hayloft/material,ilovett/material,angular/material,hayloft/material,DevVersion/material,welkinhealth/material,j3ski/material,hayloft/material,ServiceManagementGroup/material,imjoeco/material,welkinhealth/material,miguelcobain/material,Frank3K/material,ServiceManagementGroup/material,daniel-nagy/material,vertazzar/material,profoundry-us/material,daniel-nagy/material,j3ski/material,david-gang/material,clshortfuse/material,graingert/material,graingert/material,david-gang/material,HarrisCorp/material,colinskow/material,vertazzar/material,david-gang/material,profoundry-us/material,profoundry-us/material,Frank3K/material,marekmicek/material,ServiceManagementGroup/material,SamDLT/material,gkalpak/material,imjoeco/material,clshortfuse/material,bluebirdtech/material,daniel-nagy/material,Splaktar/material,angular/material,colinskow/material,j3ski/material,acoreyj/material,programmist/material,hodeyp/material,oostmeijer/material,hodeyp/material,bluebirdtech/material,gkalpak/material,epelc/material,marekmicek/material,vertazzar/material,acoreyj/material,SamDLT/material,HarrisCorp/material,profoundry-us/material,pwistbac/material,ErinCoughlan/material,ilovett/material,graingert/material,oostmeijer/material,Splaktar/material,hayloft/material,acoreyj/material,miguelcobain/material,HipsterZipster/material,marekmicek/material,bluebirdtech/material,epelc/material,bluebirdtech/material,colinskow/material,pwistbac/material,ilovett/material,imjoeco/material,clshortfuse/material,pwistbac/material,gkalpak/material,Frank3K/material,colinskow/material,gkalpak/material,miguelcobain/material,HipsterZipster/material,daniel-nagy/material,oostmeijer/material,imjoeco/material,DevVersion/material,ErinCoughlan/material,welkinhealth/material,programmist/material,hodeyp/material,j3ski/material,ilovett/material,SamDLT/material,angular/material,SamDLT/material,crisbeto/material,DevVersion/material,ServiceManagementGroup/material,vertazzar/material,hodeyp/material,ErinCoughlan/material,crisbeto/material,pwistbac/material,ErinCoughlan/material,HarrisCorp/material,miguelcobain/material,crisbeto/material,angular/material,Splaktar/material,HipsterZipster/material,clshortfuse/material,programmist/material,marekmicek/material,HarrisCorp/material,programmist/material,oostmeijer/material