Inline code style (#810)

### Prerequisites

- [x] This pull request fixes a bug.
- [ ] This pull request adds a feature.
- [ ] This pull request introduces breaking change.

### Issues Resolved

fixes #806 

I do not have any experience with styling, I found this
[commit](https://github.com/luizdepra/hugo-coder/commit/3c5a33d8f83982c55091e5d83f3a6bda5db1ca18)
that changed the related styles. I used those as references to fix the
problem. It might not be the appropriate solution. So feel free to
reject/update this PR

#### Resources

- [x] If you have changed any SCSS code, run `make release` to
regenerate all CSS files

#### Contributors

- [x] Add yourself to `CONTRIBUTORS.md` if you aren't on it already