warning message for server conflicts

apps/static/js/home/servers.js

@@ -179,9 +179,16 @@ async function registerNewServer(serverName, serverGuildId, serverIconHash, serv
     formData.append("owner", serverIsOwner === "true");
 
     try { response = await newSavedGuild(formData); }
-    catch (err) { return false }
+    catch (err) {
+        if (err.status === 409)
+            showToast("warning", "Server Conflict", `Can't add ${serverName} because it already exists.`, 10000);
+        else
+            console.error(JSON.stringify(err, null, 4));
+            
+        return false;
+    }
 
-    return response.id
+    return response.id;
 }
 
 function selectServer(primaryKey) {