decimal for expenses and invoices

[sniperfull]

In the latest version of crater, you cannot use the , symbol when entering quantity on the specified product in the estimate or invoice form. It is not possible (on ios atleast) to change the keyboard from the numeric keyboard which has the comma symbol. But you cannot use the comma symbol without crater throwing an error. This is an issue aswell on the web version of crater and you have to use a dot. Maybe a possibility to use both comma and a dot for product quantity, or just let the input field accept both dots and comma's and in the backend swap the comma for a dot. Wouldn't be so difficult to fix.