Bugfixes

Created by: xkureck

1. In OpenApi there is wrong definition of getBansForFacility. The parameter for this method is "facilityId" not "facility"
2. in facility management - hosts there is bug where error is written into the console. FIx that bug.
3. in perun admin: attributes - attribute detail dialog. In that dialog change the cancel button into mat-flat-button.
4. set some margin(ml-1) to every column of every table in whole project. Try it the way where you modify only only the styles.css where you set for every column of application.