Fixing #3772 (third part)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35863 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
4.9.314.0

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35864 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
[web] moved some spreadsheet style code to css

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35865 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
updating icons in desktop

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35866 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e