tdf#75256 Sifr iconset updates

I redo the sc_instergraphic to 1px outline instead 2px.
New crop icon.
sc_fillcolor now behind the color line
sc_insertbookmark now without the plus.

Change-Id: I9dd62bbe378735dea322b5ead03951d7db9a3162
Reviewed-on: https://gerrit.libreoffice.org/18596Reviewed-by: Yousuf Philips <philipz85@hotmail.com>
Tested-by: Yousuf Philips <philipz85@hotmail.com>
(cherry picked from commit 73a8fcec)
Reviewed-on: https://gerrit.libreoffice.org/18599Reviewed-by: Adolfo Jayme Barrientos <fitojb@ubuntu.com>
Tested-by: Adolfo Jayme Barrientos <fitojb@ubuntu.com>