Use 'Contains' when searching for customer account on a company record

Currently, when searching for a customer account on a company record, this uses a 'Starts With' search for speed and efficiency reasons, however this can make it a bit harder to find the records, especially if they were to start with/contain an unusual character, such as ’, as opposed to '.

We could amend this to use a contains search, so that you can search for any part of the account name to find the correct record.