wxGUI/animation: fix toolbar orientation (merge from trunk, https://trac.osgeo.org/grass/changeset/60784)

git-svn-id: https://svn.osgeo.org/grass/grass/branches/releasebranch_7_0@60785 15284696-431f-4ddb-bdfa-cd5b030d7da7

gui/wxpython/animation/toolbars.py

@@ -41,7 +41,7 @@ ganimIcons = {
                                 desc=_("Export animation"))
 }
 
-SIMPLE_LMGR_STDS = 128
+SIMPLE_LMGR_STDS = 256
 
 
 simpleLmgrIcons = {