Enhancement: Inline Code Highlighting

[pento]

Prism supports inline highlighting, it'd be neat if this plugin could make use of that.

I'm not sure if the existing code format button can be extended to add a highlighting option, or if it would need to be replaced.

The inline image format button is a potential model for showing a language selection dropdown. Alternatively, I think it could be reasonably added to the sidebar when the cursor is on the inline code.

[karolpawlowski]

I was just thinking that it could be very useful to have the same style in "inline code" elements, so bumping. Maybe @mkaz could add this.