Previously the `QUERY_RESULT_DEFAULT_LIMIT` const was used
to limit the number of query results. This commit adds the
`data_explorer_query_result_limit` site setting which defaults
to 1000 and has a max of 10000 which matches the const
`QUERY_RESULT_MAX_LIMIT`.
Previously this was adding an extra AJAX request to check if the group had any queries available. Now a boolean is included in the group serializer, so there is no need for the extra request.
Removing this ajax request will also stop other plugin JS integration tests from failing when the data-explorer plugin is installed.
This commit also fixes the HTML markup of the tab, so that it doesn't have a <ul> nested inside the existing <ul>. Also adds an icon for good measure.
Osama Sayegh
Martin Brennan
David Taylor
Guo Xiang Tan
Krzysztof Kotlarek