With how everyone is rebranding and redesigning there products to improve readibility and modernization it might a good idea to do the same for the software and website to make it feel as such. It could encourage more people into installing this software in the future.
This forum is using the Discourse open source forum software and it does the job fine, You can spend for ever themeing and tweaking the software in a hunt for the latest trends in how a website should look.
Or you could send the side coding on shotcut, adding new features and fixing bug.
The shotcut developers is only a couple of people, not a big company like adobe that have 100 of people working on their video editor.