Fix video paths

docs.Dockerfile

@@ -1,7 +1,7 @@
 # Generate the HTML output.
 FROM ghcr.io/cakephp/docs-builder as builder
 
-RUN pip install git+https://github.com/sphinx-contrib/video.git@master
+RUN pip install sphinxcontrib-video
 
 # Copy entire repo in with .git so we can build all versions in one image.
 COPY docs /data/docs
@@ -12,7 +12,7 @@ RUN cd /data/docs-builder \
   && make website LANGS="$LANGS" SOURCE=/data/docs DEST=/data/website \
   # Move media files into the output directory so video elements work.
   && mkdir -p /data/website/html/_static \
-  && cp /data/docs/static/* /data/website/html/_static/
+  && cp /data/docs/_static/* /data/website/html/_static/
 
 # Build a small nginx container with just the static site in it.
 FROM ghcr.io/cakephp/docs-builder:runtime as runtime