<enter> works for more dialog in web. (#4011)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@31566 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
#3882 playing with shift but still not working :-).

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@31567 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
<enter> works for "Rename" and "Redefine" dialogs as well in web. (#4011)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@31568 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e