…ndex

If a HTTP request is made to the development server that explicitly requests
an HTML file (i.e., `/abc.html`), the development server will now attempt to
fallback to the root `index.html` file if the requested HTML file does not exist.
Since this may indicate a defect or other application misconfiguration such as a
missing asset, a warning will also be issued in the console during development to
notify the developer that something may be wrong.

(cherry picked from commit 13a3e43)

Instead of attempting to delete all files within the directory, the created
symlink can instead be removed on its own. This should prevent odd Windows
failures in CI.

(cherry picked from commit f05b053)

Minor changes to the testing setup to fix failures on Windows CI.

(cherry picked from commit 5da0e48)

Contains fix for CVE-2024-47068.

See: GHSA-gcx4-mw62-g8wm