* = partner_autocomplete, point_of_sale, web_editor,
website_forum, website_slides
This can be used for example to preview an image from a file input field.
It can also be used to send the base64 content of the input by RPC instead of
having to rely on form submit as POST with multipart/form-data.
Technically wrap FileReader.readAsDataURL in a Promise.
This will also be used in task-1930726
PR: #33508
Signed-off-by: Quentin Smetz (qsm) <qsm@odoo.com>