Fix the selected version of previews

[NicoPennec]

Problem

• The version dropdown does not update between fullscreen and non-fullscreen previews.
  Eg . select a version and then go to fullscreen. The correct video is at full screen, but the version dropdown shows the latest version.

Solution

• Synchronize the selected version in the task panel and the preview player in fullscreen mode.

[NicoPennec]

@frankrousseau For Vue3 migration, don't forget to replace :value=... by @update:model-value=... after code rebase.