Close frame on escape

Modules/Config.lua

@@ -199,6 +199,11 @@ local configFrame = StaticGridFrame.new("HeimdallConfig",
     40, 12,
     { w = 1024 + 512, h = 1024 })
 configFrame:MakeMovable()
+configFrame.frame:SetScript("OnKeyUp", function(self, key)
+    if key == "ESCAPE" then
+        self:Hide()
+    end
+end)
 
 local colors = {
     { 1, 0, 0, 1 },