[FIX] web_editor: allow pasting nested lists

The class that Odoo adds to nested list items to display them nicely was
not whitelisted for pasting so pasting nested lists ended up looking
ugly.

task-3050150

closes odoo/odoo#105378

X-original-commit: edfc8f318529a7e513c5ef1631461a5dc0258d4f
Signed-off-by: David Monjoie (dmo) <dmo@odoo.com>

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

@@ -152,9 +152,10 @@ export const CLIPBOARD_WHITELISTS = {
         // Odoo colors
         /^text-o-/,
         /^bg-o-/,
-        // Odoo checklists
+        // Odoo lists
         'o_checked',
         'o_checklist',
+        'oe-nested',
         // Miscellaneous
         /^btn/,
         /^fa/,