Add popup to disable platebuffs or kui if both enabled

Kui_Nameplates/Core/Config.lua

@@ -1250,4 +1250,20 @@ do
 			UpdateFrameSize
 		)
 	end
-end
+end
+
+StaticPopupDialogs.KUINAMEPLATES_INCOMPATIBLE = {
+	text = "KuiNameplates is not compatible with PlateBuffs. Please disable PlateBuffs or KuiNameplates.",
+	button1 = "Disable PlateBuffs",
+	button2 = "Disable KuiNameplates",
+	whileDead = 1,
+	OnButton1 = function() 
+		DisableAddOn("PlateBuffs")
+		ReloadUI()
+	end,
+	OnButton2 = function()
+		DisableAddOn("KuiNameplates")
+		ReloadUI()
+	end,
+	hideOnEscape = 0,
+}

Kui_Nameplates/Core/Core.lua

@@ -500,6 +500,10 @@ function addon:OnInitialize()
 	-- on messages
 	addon.Castbar = addon:GetModule("Castbar")
 	addon.TankModule = addon:GetModule("TankMode")
+
+	if IsAddOnLoaded("PlateBuffs") then
+		StaticPopup_Show("KUINAMEPLATES_INCOMPATIBLE")
+	end
 end
 ---------------------------------------------------------------------- enable --
 function addon:OnEnable()