fix(ui): broken getTotalCount function

inferium-gui.lua

@@ -5,9 +5,9 @@ local config = {
 }
 
 local countersMap = {
-  iron = 1,
-  yolo = 2,
-  truc = 3
+  { name = "iron", count = 1 },
+  { name = "dye", count = 2 },
+  { name = "experience", count = 3 }
 }
 
 local result = CountersSelector(countersMap, config)

libs/ui/CountersSelector.lua

@@ -19,8 +19,10 @@ end
 
 local function getTotalCount(countersMap)
   local total = 0
-  for _, counter in pairs(countersMap) do
-    total = total + (counter or 0)
+  for _, counterPayload in pairs(countersMap) do
+    if counterPayload then
+      total = total + (counterPayload.count or 0)
+    end
   end
   return total
 end