* Update JS dependencies
- Update all JS dependencies
- For octicons, rename trashcan to trash
- For svgo, migrate to v2 api, output seems to have slightly changed but icons look the same
- For stylelint, update config, fix custom property duplicates
- For monaco, drop legacy Edge support
- For eslint, enable new rules, fix new issues
- For less-loader, remove deprecated import syntax
* update svgo usage in generate-images and rebuild logo.svg with it
* Add german translation guidelines
* Add German Language to Docs
* add Translation cateory & move guidelines into it
Co-authored-by: kolaente <k@knt.li>
Co-authored-by: 6543 <6543@obermui.de>
