Set imagethumbnail as thumbnail handler for all images
Similar to multimedia/ffmpegthumbs!11 (merged)
This avoids having to update the list every time a new image format is added to e. g. kimageformats (now it's missing heic etc.).
Similar to multimedia/ffmpegthumbs!11 (merged)
This avoids having to update the list every time a new image format is added to e. g. kimageformats (now it's missing heic etc.).