[FIX] web_editor: properly paste unwrapped text

When pasting from clipboard, the editor filters the nodes to paste.
Among other things, it removes `meta`, `style` and `script` nodes. It
did so using `jQuery`'s `not` method but that method has a side effect:
it removes text and comment nodes as well if you pass it a `jQuery`
selector. As a result, unwrapped text nodes could not be pasted. This
commit fixes that by using `each` to remove the targeted nodes instead
of using `not`.

closes odoo/odoo#36012

Signed-off-by: David Monjoie (dmo) <dmo@odoo.com>

addons/web_editor/static/src/js/wysiwyg/plugin/text.js

@@ -679,7 +679,12 @@ var TextPlugin = AbstractPlugin.extend({
      */
     _removeIllegalClipboardElements: function ($clipboardData) {
         var root = true;
-        $clipboardData = $clipboardData.not('meta').not('style').not('script');
+        $clipboardData.each(function (i, node) {
+            var tag = node.tagName;
+            if (tag === 'meta' || tag === 'style' || tag === 'script') {
+                $(node).remove();
+            }
+        });
         var $badNodes = this._filterIllegalClipboardElements($clipboardData);
 
         do {