Refactor application creation. Remove internal logger package.

v3/pkg/application/application_debug.go

@@ -0,0 +1,13 @@
+//go:build !production
+
+package application
+
+// We use this to patch the application to production mode.
+func newApplication(options *Options) *App {
+	result := &App{
+		isDebugMode: true,
+		options:     options.getOptions(true),
+	}
+	result.init()
+	return result
+}