fix(gatsby): use route path to serve _exact_ page in client routing (#11740)
fix(gatsby): use route path to serve _exact_ page in client routing (#11740)

* fix(gatsby): use route path to serve _exact_ page in client routing

* chore: rename declaration (whoops)

ChristopherBiscardi/gatsby,gatsbyjs/gatsby,ChristopherBiscardi/gatsby,gatsbyjs/gatsby,gatsbyjs/gatsby,ChristopherBiscardi/gatsby,gatsbyjs/gatsby,ChristopherBiscardi/gatsby,gatsbyjs/gatsby,gatsbyjs/gatsby