Spreadsheet currency formatting now defaults to the main company currency instead of always using US dollars. This makes currency formatting faster and more accurate for companies operating in other currencies, such as euros.

The restaurant preparation display now shows the actual number of customers seated at a table instead of the table's maximum capacity. This helps kitchen and service teams better understand current party sizes and prepare orders with more accurate context.

In the preparation display, when using restaurant and table, the maximum number of guest on a table was shown.
This PR is changing it to show the real number of clients at the table instead.