#122 Save presets from resolved publication

Sometimes I want to upload something in a format I used long time ago. For example the first soundtrack for Moria's Race was uploaded through Odysee.com ( I believe ). Even if not, I don't have a preset for it. I would like to have a feature in `url.py` to save a preset ( by copying all the relevant data into a preset file, to later be able to load all those same settings from that file on `publish`. ) In `publish` there are options to `save` and `load`. We will need to make up a new name for saving preset in `url.py` since there is `save` already. Which downloads the file. The preset should be saved in the same format, in the same folder. So the user would be able to find it. _____ Alternatively, problems with presets: - **Not checking if file is already saved.** For example I have the `bd` preset already. If I accidentally save another preset also to `bd`, it will overwrite it without asking. - **No way to list presets**. ( Apart from looking into the presets folder. But it's not something most users will know to look at. )