feat(ui): fade layer selection color

Author: psychedelicious

invokeai/frontend/web/src/features/controlLayers/components/LayerCommon/LayerWrapper.tsx

@@ -10,7 +10,7 @@ type Props = PropsWithChildren<{
 
 export const LayerWrapper = memo(({ onClick, borderColor, children }: Props) => {
   return (
-    <Flex gap={2} onClick={onClick} bg={borderColor} px={2} borderRadius="base" py="1px">
+    <Flex gap={2} onClick={onClick} bg={borderColor} px={2} borderRadius="base" py="1px" transitionProperty="all" transitionDuration="0.2s">
       <Flex flexDir="column" w="full" bg="base.850" borderRadius="base">
         {children}
       </Flex>