Rename config key

Author: jamesmockett

dotcom-rendering/src/client/islands/doHydration.tsx

@@ -63,7 +63,7 @@ export const doHydration = async (
 				<ConfigProvider value={config}>
 					<CacheProvider value={emotionCache}>
 						{/* Child islands should not be hydrated separately */}
-						<IslandProvider value={{ child: true }}>
+						<IslandProvider value={{ isChild: true }}>
 							{/* The component to hydrate must be a single JSX Element */}
 							{createElement(module[name], data)}
 						</IslandProvider>

dotcom-rendering/src/components/Island.tsx

@@ -63,9 +63,9 @@ export const Island = ({ priority, defer, children, role }: IslandProps) => {
 	const island = useContext(IslandContext);
 
 	return (
-		<IslandProvider value={{ child: true }}>
+		<IslandProvider value={{ isChild: true }}>
 			{/* Child islands defer to nearest parent island for hydration */}
-			{island.child ? (
+			{island.isChild ? (
 				children
 			) : (
 				<gu-island

dotcom-rendering/src/components/IslandContext.tsx

@@ -1,14 +1,14 @@
 import { createContext } from 'react';
 
 type Config = {
-	child: boolean;
+	isChild: boolean;
 };
 
 /**
  * Context to track whether the current island is a child of another island.
  * Child islands defer to the nearest parent island for hydration.
  */
-export const IslandContext = createContext<Config>({ child: false });
+export const IslandContext = createContext<Config>({ isChild: false });
 
 export const IslandProvider = ({
 	value,