Grants section - move to fully static for initial page load

[chadokruse]

Currently, page loads require a round trip to Algolia and as a result Google is not indexing grants sections. Move to a full static initial page load for the grants section.

v0: Focus on SEO - allow Algolia call to overwrite as usual

• Upstream: Add tax-year facet to aggregated.json
• Upstream: Add up to 20 grants to aggregated.json
• Add facet to Jekyll template
• Add grants to Jekyll templates

v1: No Algolia call unless visitor engages

• Upstream: Add rest of facets to aggregated.json
• Add rest of facets to Jekyll templates
• Add grants to Jekyll templates
• Add mechanism to switch over to Algolia when needed (e.g. customer starts typing in search box)