WIP Improve performance of Search Kit Activity Search

[seamuslee001]

.Overview

This is work in progress on improving hte performance of search kit contact activities tab search on large databases

Before

Tab fails on large dbs

After

Improved performance

@eileenmcnaughton @colemanw this seems to work better but there are two things that I think we still need to work on and i'm a bit stumped

1. Converting the ids into Sort names with links to the contact summary screens
2. Modifying the list of returned contact ids so that it conforms to ACLed rules as well as the current tab does I believe.

There is another element that I think the current search and the modified version is that for bulk email activities we may hit the group_concat limit and i'm not sure how we can work around that.

I am not sure if i should be setting an output handler on these fields https://github.com/civicrm/civicrm-core/blob/master/Civi/Api4/Service/Spec/Provider/ActivitySpecProvider.php or doing something differently any thoughts would be appreciated

[civibot]

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