Improve stock browser navigation

The changes from nexedi/erp5!1158 were not so good in ERP5JS, it was good to have the action here:

![stock browser dialog showing Stock as a view action](/uploads/0e9495858295016926da484b6c5fa68f/image.png)

and not under "Exports", because this is not an export, it's an interactive report.

Also, the "Stock" button is not easy to understand, this is not an action, so we use only an update button now:


![stock browser dialog with only an update action, no action](/uploads/71f40b3e2e951f3c95f7ff885dd91090/image.png)

Also, the action button in movement history was confusing, it's not a button where user have to click. It was like this, with a confusing button (but this button was sometimes useful, because with this button we can go back to stock browser):

![movement history before](/uploads/75450d7fbfe1f208ca17e14b22059b38/image.png)

Now it's like this, the button is not here, but since the action is now listed in Views, it's easy to go back to stock browser:

![movement history after](/uploads/d66d28f1fc66b69b84baba6d88574afc/image.png)

See merge request nexedi/erp5!1179