The images command was disabled in html fields if the field's view
didn't define the `allowCommandImages` option. This allows that option
to be undefined so it can be overridden by its default value when such
is the case. Before this commit however, the option was always set to
`false` when undefined (the opposite of the expected default value).
opw-3134660
X-original-commit: bf0f17d2c9f19b88d4db2f4e15423ec0c831167f
Part-of: odoo/odoo#111777
Antoine Guenet
39a2002bf1