[FIX] web_editor: prevent powerbox step from staying in history

Before this commit
Calling a command of the powerbox created a step that delete the input
content of the powerbox. That input content came back upon undo.

After this commit
The input content that select a command from the powerbox should
never come back upon undo.

task-2806849

closes odoo/odoo#87994

X-original-commit: 2da3d928ad4c7e7c285b753fb1241326089d45e7
Signed-off-by: David Monjoie (dmo) <dmo@odoo.com>

addons/web_editor/static/lib/odoo-editor/src/OdooEditor.js

@@ -1845,6 +1845,7 @@ export class OdooEditor extends EventTarget {
             preValidate: () => {
                 this._historyRevertUntil(this._beforeCommandbarStepIndex);
                 this.historyStep(true);
+                this._historyStepsStates.set(peek(this._historySteps).id, 'consumed');
                 setTimeout(() => {
                     this.editable.focus();
                     getDeepRange(this.editable, { select: true });