tdf#97116 Icons for theme Galaxy for new commands insertbefore and insertafter

This adds eight icons for the commands insertrowsbefore, insertrowsafter, insertcolumnsbefore and insertcolumnsafter in lc_ and sc_, and it adapts file links.txt

Change-Id: Id9f32797f97c38b57869bc9f729b1f2a679d1330
Reviewed-on: https://gerrit.libreoffice.org/22084Tested-by: jan iversen <jani@documentfoundation.org>
Reviewed-by: jan iversen <jani@documentfoundation.org>

icon-themes/galaxy/links.txt

@@ -19,15 +19,6 @@ cmd/sc_objectforwardone.png cmd/sc_forward.png
 cmd/lc_objectbackone.png cmd/lc_backward.png
 cmd/sc_objectbackone.png cmd/sc_backward.png
 
-cmd/lc_insertrowsbefore.png cmd/lc_insertrows.png
-cmd/sc_insertrowsbefore.png cmd/sc_insertrows.png
-cmd/lc_insertcolumnsbefore.png cmd/lc_insertcolumns.png
-cmd/sc_insertcolumnsbefore.png cmd/sc_insertcolumns.png
-cmd/lc_insertrowsafter.png cmd/lc_insertrows.png
-cmd/sc_insertrowsafter.png cmd/sc_insertrows.png
-cmd/lc_insertcolumnsafter.png cmd/lc_insertcolumns.png
-cmd/sc_insertcolumnsafter.png cmd/sc_insertcolumns.png
-
 cmd/sc_graphicdialog.png cmd/sc_insertgraphic.png
 cmd/sc_templatemenu.png cmd/sc_newdoc.png
 cmd/lc_pagesetup.png cmd/lc_setdocumentproperties.png