include templates in docker, move template directory to /usr/local/share/

Dockerfile.debian-bullseye-directory-listing

@@ -8,3 +8,4 @@ RUN apt-get -qq update && \
     apt-get -qq clean
 
 COPY directory-listing/create-index.py /usr/local/bin/create-directory-html-index
+COPY directory-listing/templates/ /usr/share/templates/

directory-listing/create-index.py

@@ -10,7 +10,7 @@ def timestamp_to_datetime(timestamp):
 	return datetime.fromtimestamp(timestamp)
 
 def main(inputfolder, outputfolder, template, ignore_files):
-	jinjaenv = jinja2.Environment(autoescape=jinja2.select_autoescape(), loader=jinja2.FileSystemLoader("templates"))
+	jinjaenv = jinja2.Environment(autoescape=jinja2.select_autoescape(), loader=jinja2.FileSystemLoader("/usr/local/share/templates"))
 	jinjaenv.filters["timestamp_to_datetime"] = timestamp_to_datetime
 
 	template = jinjaenv.get_template(f"{template}.html.j2")