style of editor panel - spreadsheetview

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@36598 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
#4569 fixed

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@36599 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e