conditionally render home page after characters are gotten

client/src/pages/home.js

@@ -41,12 +41,18 @@ export default function Home() {
 
     }
 
+    characters = characters;
+
     return (
         <>
-            <Greeting/>
+            {characters.length > 0 ?
+                <>
+                    <Greeting />
                     <CardHolder>
                         {getCharacterCards()}
                     </CardHolder>
                 </>
+            : null}
+        </>
     );
 }