🔧 Prøv å bootstrap´e uten react helper

Co-authored-by: Markus A. R. Johansen <markus.aleksander.rakil.johansen@nav.no>
Co-authored-by: Sindre Kjelsrud <sindre.kjelsrud@nav.no>
Co-authored-by: Christian Bülow Skovborg <christian.bulow.skovborg@nav.no>

backend/src/main/kotlin/no/nav/helse/sprik/plugins/Routing.kt

@@ -27,7 +27,9 @@ fun configureRouting(): ApplicationEngine = embeddedServer(CIO, applicationEngin
         }
         routing {
             singlePageApplication{
-                react("frontend/out")
+                useResources = true
+                filesPath = "frontend/out"
+                defaultPage = "index.html"
                 ignoreFiles {
                     it.endsWith(".txt")
                 }