feat: skillicons integration

[Instelce]

• SkillIconsEntry to display skill icons from skillicons.dev.
• skillicons attribute to ExperienceEntry and NormalEntry.
• Documentation and an example

Preview

How to use

- icons: py,cpp,rust,go
  size: 20
  theme: dark

[sinaatalay]

Thank you, but we try to keep RenderCV somewhat opinionated about how resumes should be written. For example, we do not support two-column CVs. We also would not add icons by default; however, users can include them by using custom Typst commands and templates. There are many discussions online about why icons are not preferred in CVs.