page.execute_scripts looks to be asynchronous, .synced is already set
by default, so the previous expectation would be fulfilled before
the script got to run, running into the page reload in the next step
which then aborts or hasen't seen the to be triggered request yet.

The fix is to use Capybaras drag_to instead

Fix offset top for autocomplete

Fix overflow with perfect scrollbar

Fix autocomplete

Adds welcome message on registration Welcome message is only send out if podmin account is defined and welcome message is enabled in the config.

This also enables the podmin account to send messages
to any local user.

closes #6128