[FIX] web_editor: fix the resizing history

This commit fixes the issue where the undo of the resizing of an
element is not done in one step.

Steps to reproduce:
- drop a snippet (like text-image)
- resize the image
- undo
=> you have to click multiple times before going back to the initial
size.

task-2968749

closes odoo/odoo#101693

X-original-commit: c4b8a2a6a7548e8a81d1ded58e6bc0e309b02975
Signed-off-by: Quentin Smetz (qsm) <qsm@odoo.com>

addons/web_editor/static/src/js/editor/snippets.options.js

@@ -4200,6 +4200,7 @@ registry.sizing = SnippetOptionWidget.extend({
         let resizeValues = this._getSize();
         this.$handles.on('mousedown', function (ev) {
             ev.preventDefault();
+            self.options.wysiwyg.odooEditor.automaticStepUnactive('resizing');
 
             // If the handle has the class 'readonly', don't allow to resize.
             // (For the grid handles when we are in mobile view).
@@ -4379,6 +4380,8 @@ registry.sizing = SnippetOptionWidget.extend({
                 setTimeout(function () {
                     self.options.wysiwyg.odooEditor.historyStep();
                 }, 0);
+
+                self.options.wysiwyg.odooEditor.automaticStepActive('resizing');
             };
             $body.on('mousemove', bodyMouseMove);
             $body.on('mouseup', bodyMouseUp);