Add G size accessibility hint to file list (#1730)

* add G in FileSize

* add changelog

Co-authored-by: jeremyp3 <jeremyp3@github.com>

ChangeLog.txt

@@ -12,6 +12,7 @@ Default Qt Client
 - TTS event on video transmission and desktop sharing toggled
 - Add missing labels on "Font color" and "Background color" buttons on "Video settings" dialog
 - TTS event when disconnect from server now includes server name
+- Add G size in file list
 Accessible Windows Client
 -
 Android Client

Client/qtTeamTalk/filesmodel.cpp

@@ -99,7 +99,9 @@ QVariant FilesModel::data ( const QModelIndex & index, int role /*= Qt::DisplayR
     case Qt::AccessibleTextRole :
     {
         QString result;
-        if(m_files[index.row()].nFileSize>=1024*1024)
+        if(m_files[index.row()].nFileSize>=1024*1024*1024)
+            result = QString("%1 G").arg(m_files[index.row()].nFileSize/(1024*1024*1024));
+         else if(m_files[index.row()].nFileSize>=1024*1024)
             result = QString("%1 M").arg(m_files[index.row()].nFileSize/(1024*1024));
         else if(m_files[index.row()].nFileSize>=1024)
             result = QString("%1 K").arg(m_files[index.row()].nFileSize/1024);