[FIX] web: image in worksheets not streched for safari

Steps to reproduce:

- Get Field Service app and the module for cutom worksheets.
- Create a new worksheet template that contains images.
- Create a new task with this template and go to the worksheet.
- Add any image.

Forcing the width to 100% breaks the view in safari since it's not going
to respect the proportions, removing this will have good behavior in
both safari and other browsers (chrome, firefox), also this
will have the same behavior it used to have in 15.0.

Be careful with adding this back in the future since when a user adds
inside his worksheet an image field, studio set the default size to
"small" value. (It's added an inline style with a widthset as "auto" and
a height set as "90px") but the image_field API was broken with the
w-100 added here[1]. It's seems not needed so we remove it to fix the
api.

[1]: https://github.com/odoo/odoo/commit/d1de396f2aa91a03732f0447d59a7306acae3129#diff-a9fcda7725e1ce88ca6deed7aff792476b26e264edc757b889e9dd3b94ea1dbfR33

opw-3415267

closes odoo/odoo#131808

X-original-commit: 740b560284e5c0987854f173437d7e4b3454caf5
Signed-off-by: Romain Estievenart (res) <res@odoo.com>

addons/web/static/src/views/fields/image/image_field.xml

@@ -31,7 +31,7 @@
             </div>
             <img
                 loading="lazy"
-                class="img img-fluid w-100"
+                class="img img-fluid"
                 alt="Binary file"
                 t-att-src="this.getUrl(props.previewImage or props.name)"
                 t-att-name="props.name"

addons/web/static/tests/views/fields/image_field_tests.js

@@ -82,7 +82,7 @@ QUnit.module("Fields", (hooks) => {
     QUnit.module("ImageField");
 
     QUnit.test("ImageField is correctly rendered", async function (assert) {
-        assert.expect(10);
+        assert.expect(12);
 
         serverData.models.partner.records[0].write_date = "2017-02-08 10:00:00";
         serverData.models.partner.records[0].document = MY_IMAGE;
@@ -143,6 +143,19 @@ QUnit.module("Fields", (hooks) => {
             "the image should correctly set its attributes"
         );
 
+        const computedStyle = window.getComputedStyle(
+            target.querySelector(".o_field_widget[name='document'] img")
+        );
+        assert.strictEqual(
+            computedStyle.width,
+            "90px",
+            "the image should correctly set its attributes"
+        );
+        assert.strictEqual(
+            computedStyle.height,
+            "90px",
+            "the image should correctly set its attributes"
+        );
         assert.containsOnce(
             target,
             ".o_field_image .o_select_file_button",