Tag use --highlight-secondary background if not set bulma classes

[Canti23]

Description

Changed the selector to change the background color of .tag

Fixes #792

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• I've read & comply with the contributing guidelines
• I have tested my code for new features & regressions on both mobile & desktop devices, using the latest version of major browsers.
• I have made corresponding changes to the documentation (README.md).
• I've checked my modifications for any breaking changes, especially in the config.yml file

[bastienwirtz]

Hello,

Good idea to use the :not selector. Your fix made me realize that somehow some styles has been duplicated in the file, I'll clean it up after merging this.

Thanks.