Code Insights: Support async search over dashboards in the dashboard select

[vovakulikov]

At the moment on the dashboard page we load and render all insight dashboards at once which might be a problem if we have a big list of dashboards (which is a potential big problem for big customers because they more likely will have a big set of dashboards)

Taking into account these problems I suggest changing our UX approach for the dashboards select component to be able to not to load all dashboard insights but load only N=15 dashboards by default and load other by search or by show more button. Similar to what we have for the search context picker on the home page.



Blockers: We don’t have search handlers in our GQL API over dashboards.

/cc @Joelkw @felixfbecker @vovakulikov

[vovakulikov]

@sourcegraph/code-insights-backend can you take a look and tell a possible estimation for adding search argument to the dashboard connection gql resolver? (in order to support async BE search/filtering over code insight dashboards)

[coury-clark]

searching by title isn't a big effort and would take at most 1 week