fix(ui): Clean up manual add forms

invokeai/frontend/web/src/common/components/IAIForms/IAIFormItemWrapper.tsx

@@ -0,0 +1,23 @@
+import { Flex } from '@chakra-ui/react';
+import { ReactElement } from 'react';
+
+export function IAIFormItemWrapper({
+  children,
+}: {
+  children: ReactElement | ReactElement[];
+}) {
+  return (
+    <Flex
+      sx={{
+        flexDirection: 'column',
+        padding: 4,
+        rowGap: 4,
+        borderRadius: 'base',
+        width: 'full',
+        bg: 'base.900',
+      }}
+    >
+      {children}
+    </Flex>
+  );
+}