feat: add nearcatalog records to improve search ux

[shelegdmitriy]

This PR introduces changes for Algoria search. replica_prod_near-social-feed includes two indexes:

• prod_near-social-feed (production records);
• test-near-catalog-index (nearcatalog records);

loom video

Closes https://github.com/near/docs/issues/1941

[charleslavon]

@shelegdmitriy I recommend renaming test-near-catalog-index to mainnet-near-catalog-index

[shelegdmitriy]

@charleslavon will do. So, next steps:

1. Configure rules to show nearcatalog proposals at the top (tune it a bit);
2. Rename test-near-catalog-index to mainnet-near-catalog-index

[shelegdmitriy]

Thinking about an improvements according to comments under the loom video, I realized we don't really need a separate tab Near Catalog. As a result, my latest commit makes nearcatalog records to be look like a "app". This should not confuse users. I can record another loom video with demo if it's needed

cc @charleslavon @thisisjoshford @s-n-park

[charleslavon]

@shelegdmitriy Nice work. Let's merge and test it out!

[charleslavon]

Is the index test-near-catalog-index_query_suggestions no longer needed?

[shelegdmitriy]

I'll clean that up in a couple of minutes