fix(Select): change how we default the list startIconAs

The `css` prop doesn't work in the default props, so we have to do it
elsewhere.

src/Select/index.tsx

@@ -266,7 +266,7 @@ export const Select: React.FC<Props> = ({
   disabled = false,
   feel,
   labelPropsCallbackRef,
-  listAs = <List startIconAs={<div css={{ alignSelf: "baseline" }} />} />,
+  listAs = <List />,
   margin = "auto",
   matchTriggerWidth,
   onBlur,
@@ -469,6 +469,17 @@ export const Select: React.FC<Props> = ({
               listAs,
               {
                 margin,
+                startIconAs: React.cloneElement(
+                  listAs.props.startIconAs || <div />,
+                  {
+                    className: cx(
+                      css`
+                        align-self: baseline;
+                      `,
+                      listAs.props.startIconAs?.props?.className,
+                    ),
+                  },
+                ),
                 truncate,
                 ...getMenuProps(undefined, { suppressRefError: true }),
                 ...(id && { id: `${id}-menu` }),