__Current behavior before PR:__
The size of an image field is guessed using the field name. For instance, an image field with `field_name = "XXXX_123"` is resized to 123 pixels when fetched.
This is can be an issue if a user creates an image field using studio in a form view.
If the user sets the label of the field as "Image 1", the technical name will become `x_studio_image_1`. Therefore, the image field will be resized to 1 pixel width.
__Description of the fix:__
Refactor the `image_guess_size_from_field_name` method to return `(0, 0)` when the field name starts with `x_studio_`.
__Steps to reproduce the issue:__
1. Open a form view (of any model)
2. Open studio
3. Add an image field with label "Image 1" (notice the technical name becomes in `x_studio_image_1` in debug mode)
4. Close studio
5. Upload an image on the created field
6. Save... The image is resized to 1 pixel width
opw-3242084
opw-3249632
opw-3253133
closesodoo/odoo#118960
X-original-commit: 3318f0e67da40983f52595aba933d8c8fd0f5cc5
Signed-off-by: Sébastien Theys (seb) <seb@odoo.com>