Shared expenses

[gbcatrinoiu]

I would like to propose a new feature for shared expenses that would help users keep track of common costs. The feature would allow each user to add payments as usual, with an additional field in the form where other users can be included.

The subscriptions dashboard would also display shared expenses in a separate section, allowing users to easily see which subscription is paid by whom.

Additionally, the statistics dashboard would have a new section for shared expenses, showing how much users owe to each other.