nvergnac authored May 18, 2022 and ntome committed May 23, 2022

Removed the first letter of echéance to handle E and É

Quentin Defenouillere authored Apr 07, 2020 and hydrargyrum committed Apr 08, 2020

Some connections do not have the 'Somme disponible' value but since it's
always the same as the 'Mon compte' value, we can use the latter and add
it to the account._invested value to get the account.balance (this sum
corresponds to the sum of investments, liquidities included).