[React19-blog]: Make use(context) example easier to understand (#6783)

* Make use(Context) example easier to understand

* Update src/content/blog/2024/04/25/react-19.md

Co-authored-by: Ricky <[email protected]>

* Update src/content/blog/2024/04/25/react-19.md

Co-authored-by: Ricky <[email protected]>

* Update src/content/blog/2024/04/25/react-19.md

Co-authored-by: Ricky <[email protected]>

* Update src/content/blog/2024/04/25/react-19.md

Co-authored-by: Ricky <[email protected]>

---------

Co-authored-by: Ricky <[email protected]>

Author: Zeko369

src/content/blog/2024/04/25/react-19.md

@@ -280,14 +280,14 @@ import LightThemeContext from './LightThemeContext'
 import DarkThemeContext from './ThemeContext'
 
 function ThemedPage({theme, children}) {
-  let theme;
+  let currentTheme;
   if (theme === 'dark') {
-    theme = use(DarkThemeContext);
+    currentTheme = use(DarkThemeContext);
   } else {
-    theme = use(LightThemeContext);
+    currentTheme = use(LightThemeContext);
   } 
   return (
-    <Page theme={theme}>
+    <Page theme={currentTheme}>
       {children}
     </Page>
   );