Course code in fuzzy search

[MinhxNguyen7]

Description

• Functionality to search for a course code in fuzzy search.
• The easiest way to do that would be to see if the query is a five-digit number and say "search for section xxxxx"
• The better UX would be to show the section itself in the search suggestions.
  • This would necessitate changing the fuzzy search drop-down and re-implementing fuzzy search on a per-term basis (which would probably be a nicer experience) because section codes are resused.

[MinhxNguyen7]

#1129 was a broken implementation and has been reverted

[MinhxNguyen7]

We need to think about how to do this without increasing the bundle size and memory usage 20 times

[MinhxNguyen7]

Solution: shard the index into multiple files that ship with the lambda bundle and read from them dynamically (as requests come in). You should be able to do this by uploading the lambda as a zip file archive. Let me know if you run into problems there.

Right now, try to shard it by term, which should be easier.