Typo in algebra view header

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@38032 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
#4806 hotfix

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@38033 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
#4806 some warnings fixed

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@38034 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e