Allow multiple files upload through web UI, including drag & drop (#9856)

* Allow drag and drop uploads of multiple files to compose

* Calculate aggregate upload progress for single action

* Allow multiple uploads to compose through traditional input, consolidate update file limit logic, provide file limit feedback

1 files changed, 2 insertions, 2 deletions

diff --git a/app/javascript/mastodon/actions/alerts.js b/app/javascript/mastodon/actions/alerts.js
index 3f5d7ef46..50cd48a9e 100644
--- a/app/javascript/mastodon/actions/alerts.js
+++ b/app/javascript/mastodon/actions/alerts.js
@@ -22,7 +22,7 @@ export function clearAlert() {
   };
 };
 
-export function showAlert(title, message) {
+export function showAlert(title = messages.unexpectedTitle, message = messages.unexpectedMessage) {
   return {
     type: ALERT_SHOW,
     title,
@@ -44,6 +44,6 @@ export function showAlertForError(error) {
     return showAlert(title, message);
   } else {
     console.error(error);
-    return showAlert(messages.unexpectedTitle, messages.unexpectedMessage);
+    return showAlert();
   }
 }