Expand / Collapse filters on Funder results

[KDuerden]

Funders looking at just their data has been the main user group and way of viewing the data in the current tool.

Making the funder select filter expand/collapsible would help reduce the space taken up by functions not relevant to their data.

[mariongalley]

@KDuerden Would this need to be expand/collapsible on the results page only, or also on the homepage?

[KDuerden]

Results page only

[mariongalley]

This may be a prerequisite for Insights widgets being embedded on funders' websites.