text: Title: [Doc]: stable docs link to dev
  Body: ### Documentation Link
  
  https://matplotlib.org/stable/index.html
  
  ### Problem
  
  On MacOS Firefox, the link to the documentation (which is for the stable version) takes me to 3.10 (dev), so I always get the "This is documentation for an unstable development version" message. 
  
  ### Suggested improvement
  
  I figure this has something to do with the latest release, 3.9.4 (which has no link), while [3.9.3](https://matplotlib.org/3.9.3/index.html) is working.