[FIX] web: auto_search false and search view

By default auto_search is set to `True` on window actions, this mean
that for example on a list or kanban view the records will be searched
on the view opening without any user action needed.

Setting it to `False` disable this.

Doing this had two drawbacks:

- depending on race condition, the view could be displayed before the
  search view was loaded,

- the code expected `active_search` to be present which was not the case
  in this instance.

Before 151c9074 the second issue would not happen (active_search was set
directly resolved if a search was not to be done) and this commit also
wait for the search view being ready before showing the view.

opw-741186
opw-741546
closes #16805