move auth and favicon form main to handlers, linting

handlers/favicon.go

@@ -0,0 +1,18 @@
+package handlers
+
+import (
+	_ "embed"
+
+	"github.com/gofiber/fiber/v2"
+	"github.com/gofiber/fiber/v2/middleware/favicon"
+)
+
+//go:embed favicon.ico
+var faviconData string
+
+func Favicon() fiber.Handler {
+	return favicon.New(favicon.Config{
+		Data: []byte(faviconData),
+		URL:  "/favicon.ico",
+	})
+}