Open Categories in Response to Search

[TaiWilkin]

Overview

When the user enters a search term on the questions page, categories are automatically opened if they contain matching questions, and closed if they have no matching questions. Note that this means that if the user has manually opened or closed a category, then enters or changes a search, the expansion of the accordion will be changed, as there isn't a reasonable way to track which categories have been manually toggled by the user.

Connects #73

Demo

Testing Instructions

• In the Netlify preview, select a geography and move to the questions page. Enter a search - categories with matching items should open.
• Type a search that will not match any questions - the categories should close.
• Select some questions, go to the charts page, and return. Selected categories should open by default on page load as before.

[alexelash]

@TaiWilkin Can these always keep the categories open even when no results are returned? Inside each category there is text that says "Contains no matching questions" which I think will help with clarity.

[TaiWilkin]

Updated to only open categories in response to search, not close them.

[TaiWilkin]

Thanks for the reviews!