Add .include-dark to repo-actions screenshot

Author: cderv

docs/websites/website-navigation.qmd

@@ -511,7 +511,7 @@ website:
 
 The links will be displayed immediately below the page's table of contents:
 
-![](images/repo-actions.png){fig-alt="A screen shot of a Quarto document. Underneath the page table of contents on the right side are three options: 'Edit this page', 'View source' and 'Report an issue'. There is a Github icon to the left of 'Edit this Page.'"}
+![](images/repo-actions.png){.include-dark fig-alt="A screen shot of a Quarto document. Underneath the page table of contents on the right side are three options: 'Edit this page', 'View source' and 'Report an issue'. There is a Github icon to the left of 'Edit this Page.'"}
 
 There are a couple of additional options that enable you to customize the behavior of repository links: