Used round instead of ceil in QML

qml/pages/PageSendMessage.qml

@@ -92,7 +92,7 @@ Item {
             return true
         }
         if (totalAttachmentSizeBytes >= 1024) {
-            attachmentsSizeLabel.text = qsTr("Total size of attachments is ~%1 kB.").arg(Math.ceil(totalAttachmentSizeBytes/1024))
+            attachmentsSizeLabel.text = qsTr("Total size of attachments is ~%1 kB.").arg(Math.round(totalAttachmentSizeBytes/1024))
         } else {
             attachmentsSizeLabel.text = qsTr("Total size of attachments is %1 B.").arg(totalAttachmentSizeBytes)
         }