Prioritize exact matches in search results

[AlexanderPico]

In particular for WPIDs which commonly have lots of partial matches though a singular intent. E.g., WP10 should return a single hit, but it would return all WPIDs starting with 10, such as 100, 101, 1000, 1001, etc....

[khanspers]

The same thing is true for searches on pathway titles. For example, we have one pathway named "ABA biosynthesis", but a search for it returns it as number 4: https://www.wikipathways.org/search.html?query=ABA%20biosynthesis