opt.: disk size (#252)

lib/view/page/storage/local.dart

@@ -182,7 +182,7 @@ class _LocalStoragePageState extends State<LocalStoragePage> {
             title: Text(fileName),
             subtitle: isDir
                 ? null
-                : Text(stat.size.convertBytes, style: UIs.textGrey),
+                : Text(stat.size.bytes2Str, style: UIs.textGrey),
             trailing: Text(
               stat.modified
                   .toString()

lib/view/page/storage/sftp.dart

@@ -304,7 +304,7 @@ class _SftpPageState extends State<SftpPage> with AfterLayoutMixin {
         subtitle: isDir
             ? null
             : Text(
-                (file.attr.size ?? 0).convertBytes,
+                (file.attr.size ?? 0).bytes2Str,
                 style: UIs.textGrey,
               ),
         onTap: () {

lib/view/page/storage/sftp_mission.dart

@@ -94,7 +94,7 @@ class _SftpMissionPageState extends State<SftpMissionPage> {
         );
       case SftpWorkerStatus.loading:
         final percentStr = (status.progress ?? 0.0).toStringAsFixed(2);
-        final size = (status.size ?? 0).convertBytes;
+        final size = (status.size ?? 0).bytes2Str;
         return _wrapInCard(
           status: status,
           subtitle: l10n.percentOfSize(percentStr, size),