config(docker compose): add local rundfunkarr-at, unpackerr config, gitea bidy_size fix

add local rundfunkarr from git fork
update unpackerr dafult config(generated at docker compose up)
reverse proxy change: client_max_body_size 10G to transfer larger files
to gitea

docker_compose/mediahost/nginx/conf.d/reverseProxy.conf

@@ -356,6 +356,7 @@ server {
     ssl_certificate /etc/nginx/certs/live/cloud.someoneslinux.selfhost.eu/fullchain.pem;
     ssl_certificate_key /etc/nginx/certs/live/cloud.someoneslinux.selfhost.eu/privkey.pem;
 
+    client_max_body_size 10G;
     location / {
         proxy_pass http://gitea:3000;
         # Do not try another upstream on errors