New spreadsheet stylebar icons (align)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35514 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
[web] - new spreadsheet stylebar icons

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35515 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e