DodoApp: Cache static resources.

Change-Id: Ib1f800ea052c5f3b7929a1d325b351dfa0a6633e
diff --git a/core/installer/welcome/welcome.go b/core/installer/welcome/welcome.go
index 85d7f61..234a53b 100644
--- a/core/installer/welcome/welcome.go
+++ b/core/installer/welcome/welcome.go
@@ -27,6 +27,9 @@
 //go:embed static/*
 var staticAssets embed.FS
 
+//go:embed stat/*
+var statAssets embed.FS
+
 type Server struct {
 	port              int
 	repo              soft.RepoIO
@@ -59,7 +62,7 @@
 
 func (s *Server) Start() {
 	r := mux.NewRouter()
-	r.PathPrefix("/static/").Handler(cachingHandler{http.FileServer(http.FS(staticAssets))})
+	r.PathPrefix("/stat/").Handler(cachingHandler{http.FileServer(http.FS(statAssets))})
 	r.Path("/").Methods("POST").HandlerFunc(s.createAccount)
 	r.Path("/").Methods("GET").HandlerFunc(s.createAccountForm)
 	http.Handle("/", r)