Finish game creation

src/routes/(app)/game/new/+page.svelte

@@ -40,20 +40,32 @@
             return;
         }
 
-        let characterBody = {
-            name: characterName,
-            description: characterDescription
-        };
+        const sessionProm = fetch(`${PUBLIC_API_URL}/game/${gameData.id}/session`, {
+            method: "POST",
+            headers: {"Content-Type": "application/json"},
+            credentials: "include"
+        });
 
-        const charRes = await fetch(`${PUBLIC_API_URL}/game/${gameData.id}/character`, {
+        const charProm = fetch(`${PUBLIC_API_URL}/game/${gameData.id}/character`, {
             method: "POST",
             headers: {"Content-Type": "application/json"},
             credentials: "include",
-            body: JSON.stringify(characterBody)
+            body: JSON.stringify({
+                name: characterName,
+                description: characterDescription
+            })
         });
 
-        const charData = await charRes.json();
-        if (!charRes.ok) {
+        const [sessionRes, charRes] = await Promise.all([sessionProm, charProm]);
+        const [sessionData, charData] = await Promise.all([sessionRes.json(), charRes.json()]);
+        
+        if(!sessionRes.ok){
+            toast(sessionData.error.message, "error");
+            if(sessionRes.status === 401) goto("/");
+            return;
+        }
+
+        if(!charRes.ok){
             toast(charData.error.message, "error");
             if(charRes.status === 401) goto("/");
             return;