SUP-3048, [subflow] New Submit - Issue with sync on flow

-- Fixed minor style issue. Aligned the text to center.

Author: vikasrohit

assets/css/submissions/submit-file.scss

@@ -130,6 +130,7 @@ modal {
     display: flex;
     flex-direction: column;
     align-items: center;
+    text-align: center;
   }
 
   .upload-progress__image,