Not showing video thumbnails by default

[Harnapazade]

Dolphin flatpak needs ffmpegthumbs package by default so that we can see video thumbnails without a problem. Thanks....

[oshanz]

@Harnapazade, how can I install that package? I couldn't find it on flathub

[travier]

This might need to be provided in the Flatpak like we do for kdenlive.

[Harnapazade]

We need 2 package basically.

ffmpegthumbs, kffmpegthumbnailer

[itsnotsaved]

We need 2 package basically.
ffmpegthumbs, kffmpegthumbnailer

kdegraphics-thumbnailers also, list of packages that install with dolphin on ubuntu systems

baloo-kf5, ffmpegthumbs, kdegraphics-thumbnailers, kimageformat-plugins #69 flathub/org.kde.gwenview#30, kuserfeedback-doc, libavif13, libdolphinvcs5, libgav1-0, libkf5attica5, libkf5auth5, libkf5baloowidgets-bin, libkf5baloowidgets-data, libkf5baloowidgets5, libkf5kcmutils-data, libkf5kcmutils5, libkf5kexiv2-15.0.0, libkf5newstuff-data, libkf5newstuff5, libkf5newstuffcore5, libkf5syndication5abi1, libkuserfeedbackcore1, libkuserfeedbackwidgets1, libpackagekitqt5-1, libyuv0, qml-module-org-kde-newstuff, qml-module-org-kde-userfeedback

[Justinzobel]

Fixed by #268