Prepare code for release

Author: luc-github

README.md

@@ -3,8 +3,6 @@
 using Preact per @aganov suggestion  
 Rewrite per @alxblog suggestion to use proper Preactjs API and lighter css code: use spectre.css instead of bootstrap 4.x
 
-## Beta stage / Ready to test
-
 Only compatible with [ESP3DLib 3.0](https://github.com/luc-github/ESP3DLib/tree/3.0) , [ESP3D 3.0](https://github.com/luc-github/ESP3D/tree/3.0), [grblHAL](https://github.com/grblHAL), [ESP3D_TFT 1.0](https://github.com/luc-github/ESP3D-TFT/tree/main)   
 
 [Latest development version ![Development Version](https://img.shields.io/badge/Devt-v3.0-yellow?style=plastic)](https://github.com/luc-github/ESP3D-WEBUI/tree/3.0) ![GitHub last commit (branch)](https://img.shields.io/github/last-commit/luc-github/ESP3D-WEBUI/3.0?style=plastic) [![github-ci](https://github.com/luc-github/ESP3D-WeBUI/workflows/build-ci/badge.svg)](https://github.com/luc-github/ESP3D-WEBUI/actions/workflows/build-ci.yml)  [![Project Page ESP3D 3.0](https://img.shields.io/badge/Project%20page-ESP3D%203.0-blue?style=plastic)](https://github.com/users/luc-github/projects/1/views/1) 

info.json

@@ -1,3 +1,3 @@
 {
-    "version": "3.0.0-4b1"
+    "version": "3.0.0"
   }

src/components/App/version.js

@@ -17,7 +17,7 @@
 */
 import { h } from "preact"
 import { webUIbuild } from "../../targets"
-export const webUIversion = "3.0.0-4b1"
+export const webUIversion = "3.0.0"
 export const Esp3dVersion = () => (
     <span>
         {webUIversion}.{webUIbuild}