* [examples/openspending][m] - added loader + fetching from datapackage
- Also added an indexing example
* [examples/openspending,home][xl]: removes datasets table, implement dataset cards grid, implement country facet
* [examples/openspending,home][m]: add min date and max date facets
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Co-authored-by: Luccas Mateus de Medeiros Gomes <luccasmmg@gmail.com>
