Release 1.48.0 (#352)

* Nullify netPerformance

* Introduce precision

* Update changelog

CHANGELOG.md

@@ -5,7 +5,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## Unreleased
+## 1.48.0 - 07.09.2021
 
 ### Added
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "ghostfolio",
-  "version": "1.47.1",
+  "version": "1.48.0",
   "homepage": "https://ghostfol.io",
   "license": "AGPL-3.0",
   "scripts": {