Add: embed web files

pkg/api/api.go

@@ -1,11 +1,12 @@
 package api
 
 import (
-	"github.com/gorilla/sessions"
 	"msw-open-music/pkg/commonconfig"
 	"msw-open-music/pkg/database"
 	"msw-open-music/pkg/tmpfs"
 	"net/http"
+
+	"github.com/gorilla/sessions"
 )
 
 type API struct {
@@ -103,7 +104,7 @@ func NewAPI(config commonconfig.Config) (*API, error) {
 	apiMux.HandleFunc("/reset", api.HandleReset)
 
 	mux.Handle("/api/v1/", http.StripPrefix("/api/v1", api.PermissionMiddleware(apiMux)))
-	mux.Handle("/", http.StripPrefix("/", http.FileServer(http.Dir("web/build"))))
+	mux.Handle("/", http.StripPrefix("/", http.FileServer(http.FS(config.WEBFS))))
 
 	return api, nil
 }