docs: view source link is broken for htmlSelectExample

View source on GitHub link for HTMLSelectExample page is broken:

leads to hTMLSelectExample.tsx (with only the first letter in lowercase) instead of htmlSelectExample.tsx.

Looks like this is due to https://github.com/palantir/blueprint/blob/d73a4055f2b5f45b1042fd838a1ce2127d5088c6/packages/docs-app/src/tags/reactExamples.ts#L37

Steps to reproduce

1. go to https://blueprintjs.com/docs/#core/components/html-select
2. click "View source on GitHub"
3. observe that it leads to a non-existent file

Actual behavior

Expected behavior

Possible solution

Not sure if we should make an exception for this example only, and I figure it would break for other uppercase example files that could be added in the future.