Fix regulations ordering on search page

[JonellaCulmer]

What we're after

Regulations should not be in alphanumeric order, where all 1's then 2's then 3's. Order should be 1.1, 1.2, 1.3, 1.4...

Technical considerations:

• All regulations are only shown when there is no search query. https://www.fec.gov/data/legal/search/regulations/?search_type=regulations&search=
• Searches for specific section, put that sections single result first, then any results where that section is mentioned in other sections. https://www.fec.gov/data/legal/search/regulations/?search_type=regulations&search=110.4
  • Can we show exact match for section at the top as it currently does, but then sort the way we want after that?
• Example searches: 110.4, 104.19

Completion criteria

• [ ] If possible, show exact match for section at the top as it currently does, but then sort the way we want after that
• [ ] Order fixed on regulations search page

Screenshot