Task 2352493

When the user is asked to fill in the label on the invoice, the tooltip
tells him that the label can be auto-filled by configuring its products.
This leads the user to configure products. But then, as he doesn't fill
in the label, the tour is "broken".

closes odoo/odoo#62272

Signed-off-by: Quentin De Paoli (qdp) <qdp@openerp.com>

Beforehand, users could configure an account as non reconcilable
even when it was configured as a payment credit or debit account
in a journal. This prevented journal items to be reconciled

Now, when a user tries to set an account as non reconcilable,
we check if there is no journal with a payment credit or debit account
set to this particular account. If there is at least one journal,
then we display an error message stating the journals names and ids
that the user would have to modify before changing the account
configuration.

closes odoo/odoo#69205

Signed-off-by: Laurent Smet <smetl@users.noreply.github.com>

For customer invoices:
* do not set default date because if you prepare an invoice (and it gets
  a default date), then validate it the next day, the date will be wrong
* set the date when posting if it wasn't set, because why not?

For vendor bills:
* do not set default date because you rarely encode a bill at the bill
  date. Forcing the user to enter it reduces risks of user error
  (duplicated vendor bill)
* do not set it when posting, same reason.

opw-2492862
Related #68368
Closes #68367

closes odoo/odoo#68689

Related: odoo/enterprise#17502
Signed-off-by: Laurent Smet <smetl@users.noreply.github.com>