update to 2.19.2

[UlrichB22]

Related to moinwiki/moin#2122

Some new styles have been added since version 2.9.0.

Style stata.css has been renamed to stata-light.css because a new stata-dark.css has been added.

Regenerated css files using a script like this (no warrenty):

#!/usr/bin/bash

PYGMENTS_VERSION="2.19.2"
VENV=".venv-pygments"
OUTDIR="css_all"

echo "Creating virtual environment: $VENV ..."
python3 -m venv "$VENV"

echo "Installing Pygments $PYGMENTS_VERSION"
"$VENV/bin/pip" install --quiet "pygments==$PYGMENTS_VERSION"

PYGMENTIZE="$VENV/bin/pygmentize"
echo "Version: $($PYGMENTIZE -V)"

mkdir -p "$OUTDIR"

for style in $(pygmentize -L styles | grep -e '^*' |  awk '{print $2}' | sed 's/://')
    do
    echo "Regenerating $style.css ..."
    "$PYGMENTIZE" -S "$style" -f html > $OUTDIR/$style.css
done

Still need to be tested.