[Dokuwiki] Fix mbstring missing and locale not installed

pica-dokuwiki/Dockerfile

@@ -11,9 +11,11 @@ RUN apt-get update -y && \
     tar \
     nano \
     locales \
+    locales-all \
     php7.3 \
     php7.3-fpm \
     php7.3-gd \
+    php-mbstring \
     php7.3-ldap \
     php7.3-xml && \
     mkdir -p html /var/run/php && \
@@ -24,7 +26,7 @@ RUN apt-get update -y && \
     sed -i -e "s|;listen\.group\s*=\s*|listen.group = |g" /etc/php/7.3/fpm/pool.d/www.conf && \
     sed -i -e "s|;listen\.mode\s*=\s*|listen.mode = |g" /etc/php/7.3/fpm/pool.d/www.conf && \
     sed -i -e "s|;extension=mbstring|extension=mbstring|g" /etc/php/7.3/fpm/php.ini && \
-    sed -i -e "s|;date\.timezone ="|date\.timezone = Europe/Paris|g" /etc/php/7.3/fpm/php.ini && \
+    sed -i -e "s|;date\.timezone =|date\.timezone = Europe/Paris|g" /etc/php/7.3/fpm/php.ini && \
     wget -O dokuwiki.tgz "https://download.dokuwiki.org/src/dokuwiki/dokuwiki-stable.tgz" && \
     mkdir update && \
     tar -xzf dokuwiki.tgz -C update --strip-components 1 && \