Remove demo file viewer, update dependencies

webcontroller/filesystem.go

@@ -6,6 +6,7 @@ import (
 	"strings"
 
 	"fornaxian.tech/log"
+	"fornaxian.tech/util"
 	"github.com/julienschmidt/httprouter"
 )
 
@@ -35,7 +36,7 @@ func (wc *WebController) serveDirectory(w http.ResponseWriter, r *http.Request,
 	td.Title = fmt.Sprintf("%s ~ pixeldrain", node.Path[node.BaseIndex].Name)
 	td.Other = node
 	err = wc.templates.Get().ExecuteTemplate(w, "filesystem", td)
-	if err != nil && !isNetError(err) {
+	if err != nil && !util.IsNetError(err) {
 		log.Error("Error executing template filesystem: %s", err)
 	}
 }