Open `https://devdocs.io/` URLs in the installed PWA

[vbrozik]

Feature request

With the DevDocs PWA (progressive web app) installed when opening a DevDocs URL - for example in Windows: start chrome https://devdocs.io/python~3.13/library/copy open the documentation inside the PWA window. This would be very useful for example when using the devdocs extension in VS Code.

Currently the documentation opens as a usual web page - i.e. in Google Chrome as a new tab. Chrome only shows a button "Open in app" and only after clicking it the web page opens in the installed PWA.