- Colordots are generated for colors in inline code, such as `red`,
`rgb(255, 0, 124)`, `#ffaabb` and `hsl(124, 52%, 50%)`. However this
shouldn't be doon for literal color names as these can be too common
assiocated with non-color related stuff _and matches the behavior of
some other forge_.
- Move the regexes from bluemonday to Forgejo and do the checking
ourselves.
- Adds unit tests.
- Resolves https://codeberg.org/Codeberg/Community/issues/1510
