Filtering of mistral objects e.g. 'Action List' only works on current page objects

[Rajat Jain]

Issues:
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Lets Take example of 'Actions', When we filter for particular action in horizon UI filter search box it only filters on actions present on current page. It does not filter on all the objects in the backend.

Analysis:
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I Investigated this issue, problem is that filtering logic is on frontend not on backend. Means there is no api call when we filter on action list.
Since Frontend doesnot have all the action list objects and it gets the next 20 object only when we click on 'next' (throigh API). it is capable to filter on its current available 20 objects.

Solution is to develop complete feature to move filtering logic to backend.