Make mapping apply across accounts #5
Description
Currently there is a mapping file for each account. This file defines payee/narration, account, and tags for a given input.
It makes more sense for this to not be per-account. For example, if I have a line in the mapping file for credit card 1 that goes /UA INFLT \d{13}/,United Airlines,Expenses:Travel:Flights, I probably want it to be the same regardless of which card I'm using.
I'd like to build a solution where there is a single mapping file defined in the config. Within that mapping file, I should be able to define on a per-line basis if I only want the mapping to apply to a single account (probably too complex to handle multiple accounts in a single line - for this use case user should simply have multiple lines, with one account per line). However, default should be to apply to all accounts.