Fix last follower mission list button sometimes being about half the size of the rest by setting the button to fullwidth before attaching it to the list

diff --git a/GarrisonCommander.lua b/GarrisonCommander.lua
index 612a001..c0280f3 100644
--- a/GarrisonCommander.lua
+++ b/GarrisonCommander.lua
@@ -1512,8 +1512,8 @@ do
 			if mission and party and #party.members >= G.GetMissionMaxFollowers(missionID) then
 				local mb=AceGUI:Create("GMCMissionButton")
 				mb:SetScale(0.6)
-				ml:PushChild(mb,missionID)
 				mb:SetFullWidth(true)
+				ml:PushChild(mb,missionID)
 				mb:SetMission(mission,party,false,"followers")
 				mb:SetCallback("OnClick",MissionOnClick)
 				prog=prog+1