slots-grid coord fix

src/coders/byte_utils.cpp

@@ -207,4 +207,4 @@ const ubyte* ByteReader::pointer() const {
 
 void ByteReader::skip(size_t n) {
     pos += n;
-}
+}

src/frontend/InventoryView.cpp

@@ -396,7 +396,7 @@ static void readSlotsGrid(InventoryView* view, gui::UiXmlReader& reader, xml::xm
             }
             SlotLayout slotLayout = layout;
             slotLayout.index = startIndex + idx;
-            slotLayout.position = glm::vec2(
+            slotLayout.position += glm::vec2(
                 padding + col * (slotSize + interval),
                 padding + row * (slotSize + interval)
             );