This PR fixes some minor bugs on advanced filters.
## Dropdown menu header in filter input
The chevron down icon in the operand dropdown menu header was missing
due to a recent refactor of the DropdownMenuHeader component.
I just removed the unused EndIcon and replaced its usage by
EndComponent.
## Advanced filter dropdown staying open with 0 filters
The behavior we have for non-advanced filters is that the chip should
disappear if the filter gets empty, which is logical, an empty filter is
equivalent to not having filters, so don't want empty chips.
For advanced filters, the principle is the same, except that it's a bit
more complex to handle due to the recursive filter group hierarchy.
Here we create a useRemoveRootRecordFilterGroupIfEmpty hook, that we can
call everywhere a synchronous action should end up removing advanced
filters completely. (instead of using an effect)
This hook is distinct from removeRecordFilterGroup because we want
removeRecordFilterGroup to do only one job and we don't want it to hide
any side effect. It's better to have the side effect in a separate hook
that we call sequentially afterwards, in a self-explanatory manner.
## Miscellaneous
In this PR we add a new component selector to get the root level record
filter group, which is handy in a lot of cases.
The return type of the useChildRecordFiltersAndRecordFilterGroups hook
when it's empty has been fixed, though as discussed with Charles, it
would be better to turn it into selectors, which will certainly be done
in future PRs.
4b34aa60b1