[FIX] website: debounce link dialog inputs to avoid useless page loading

When we edit a link on the website, the target page is loaded to find
the anchors. This occured at every typed character which was obviously
not efficient.

task-2187754

closes odoo/odoo#45831

X-original-commit: 06ae0b7b00c837733a9c67772007aee6712b246e
Signed-off-by: Quentin Smetz (qsm) <qsm@odoo.com>

addons/website/static/src/js/editor/widget_link.js

@@ -15,7 +15,15 @@ weWidgets.LinkDialog.include({
     custom_events: _.extend({}, weWidgets.LinkDialog.prototype.custom_events || {}, {
         website_url_chosen: '_onAutocompleteClose',
     }),
+    LINK_DEBOUNCE: 1000,
 
+    /**
+     * @constructor
+     */
+    init: function () {
+        this._super.apply(this, arguments);
+        this._adaptPageAnchor = _.debounce(this._adaptPageAnchor, this.LINK_DEBOUNCE);
+    },
     /**
      * Allows the URL input to propose existing website pages.
      *