Updated homedecor and plantlife

- New coloured signs

mods/plantlife_modpack/ferns/gianttreefern.lua

@@ -110,11 +110,17 @@ minetest.register_node("ferns:tree_fern_leaves_giant", {
 		not_in_creative_inventory=1
 	},
 	drop = {
-		max_items = 1,
+		max_items = 2,
 		items = {
+			{
+				-- occasionally, drop a second sapling instead of leaves
+				-- (extra saplings can also be obtained by replanting and
+				--  reharvesting leaves)
+				items = {"ferns:sapling_giant_tree_fern"},
+				rarity = 10,
+			},
 			{
 				items = {"ferns:sapling_giant_tree_fern"},
-				rarity = 40,
 			},
 			{
 				items = {"ferns:tree_fern_leaves_giant"},