Add fix for count filter in data series query
Created by: vovakulikov
Closes https://github.com/sourcegraph/sourcegraph/issues/21955
Adds fix for count filter in an insight search query for live preview chart.
Background
We're usually adding count: 9999
as the default filter to series query search-insight data for the live preview chart just to be sure we will collect and fetch all data that we have.
But if the user specified the count filter themself we should use the user value instead of the 9999
value. This PR adds a fix for it.
Important to note this fix only for the live preview chart of search-based insight creation UI. We have a separate PR that fixes that problem in search-based extension. https://github.com/sourcegraph/sourcegraph-search-insights/pull/9