Fix UI crash when attempting to create profile with no templates present

Author: RisaDev

CustomizePlus/UI/Windows/Controls/TemplateCombo.cs

@@ -74,9 +74,15 @@ protected bool Draw(Template? currentTemplate, string? label, float width)
     {
         _currentTemplate = currentTemplate;
         UpdateCurrentSelection();
+
         InnerWidth = 400 * ImGuiHelpers.GlobalScale;
-        CurrentSelectionIdx = Math.Max(Items.IndexOf(p => currentTemplate == p.Item1), 0);
-        CurrentSelection = Items[CurrentSelectionIdx];
+
+        if(Items.Count > 0)
+        {
+            CurrentSelectionIdx = Math.Max(Items.IndexOf(p => currentTemplate == p.Item1), 0);
+            CurrentSelection = Items[CurrentSelectionIdx];
+        }
+
         var name = label ?? "Select Template Here...";
         var ret = Draw("##template", name, string.Empty, width, ImGui.GetTextLineHeightWithSpacing())
          && CurrentSelection != null;