Create missing directories in storage

docker/start.sh

@@ -1,6 +1,8 @@
 #!/bin/sh
 
-mkdir -p storage/framework/{cache,sessions,views,logs}
+mkdir -p storage/app/public/avatars
+mkdir -p storage/{debugbar,logs}
+mkdir -p storage/framework/{cache,sessions,views,testing}
 php artisan migrate
 
 exec apache2-foreground