[Feature request] Total cost per pack and list export

[via-justa]

For insurance reclaims, it can be useful to be able to:

• Export packing lists/packs to PDF. At the moment, the easiest way to do so is to open the shareable URL and print the page.
• Ability to add the costs to exports (preferably as an optional field)
• Add a total packing list/pack cost on the sidebar.

Continue the great work!