SugarPaletteWindowWidget: add border rules - SL #4295
SugarPaletteWindowWidget: add border rules - SL #4295

This were in the GTK2 theme the palette xthickness and ythickness.

Signed-off-by: Manuel Quiñones <6f5069c5b6be23302a13accec56587944be09079@laptop.org>
Acked-by: Simon Schampijer <088e16a1019277b15d58faf0541e11910eb756f6@laptop.org>

i5o/sugar-artwork,godiard/sugar-artwork,i5o/sugar-artwork,tchx84/debian-pkg-sugar-artwork,i5o/sugar-artwork,ceibal-tatu/sugar-artwork,sugarlabs/sugar-artwork,tchx84/debian-pkg-sugar-artwork,ceibal-tatu/sugar-artwork,tchx84/debian-pkg-sugar-artwork,ceibal-tatu/sugar-artwork,godiard/sugar-artwork,samdroid-apps/sugar-artwork,sugarlabs/sugar-artwork,samdroid-apps/sugar-artwork,godiard/sugar-artwork,samdroid-apps/sugar-artwork,sugarlabs/sugar-artwork