Add Standalone Vue Remote Devtools App (electron shell) (#451) (#452)

* Create a minimal electron shell for vue-devtools.

* Remote devtools MVP: added middleware server with websockets communication and express serving file for client (backend)

* Add missing chrome icon

* Add loading state, handle multiple instances

* Use consistent port, update electrom shell template to display proper IP

* Add build script

* Change name to vue-remote-devtools,
Add connector as importable script

* Add readme to electron shell

* Replace hardcoded port

* Make the electron shell work without previous extension hook

* Fix devtools.connect

* Remove console.log

* Handle disconnections, keep only one connection live

* Handle closing devtools, add comments

* Use prepare instead of prepublish. Allow specifying remote host instead of hardcoding localhost

* Update local server to run on 0.0.0.0 by default, add host param to connect method

* Update electron shell readme

* Create a minimal electron shell for vue-devtools.

* Remote devtools MVP: added middleware server with websockets communication and express serving file for client (backend)

* Add missing chrome icon

* Add loading state, handle multiple instances

* Use consistent port, update electrom shell template to display proper IP

* Add build script

* Change name to vue-remote-devtools,
Add connector as importable script

* Add readme to electron shell

* Replace hardcoded port

* Make the electron shell work without previous extension hook

* Fix devtools.connect

* Remove console.log

* Handle disconnections, keep only one connection live

* Handle closing devtools, add comments

* Use prepare instead of prepublish. Allow specifying remote host instead of hardcoding localhost

* Update local server to run on 0.0.0.0 by default, add host param to connect method

* Update electron shell readme

* Update eslint script

* Improve compatibility with wider range of devices

* Yarn lock

* Target for electron shell

* Fix error on SVG (was event.target)

* Check for global hook var in all shells

* Fix events tab

* Misc

* Remove unecessary script

* Remove unecessary script

* Remove extra indentation

* Revert fb82758

Author: rigor789

README.md

@@ -18,6 +18,8 @@ Works with [vuex](https://github.com/vuejs/vuex) for time-travel debugging:
 
 - [Get the Firefox Addon](https://addons.mozilla.org/en-US/firefox/addon/vue-js-devtools/)
 
+- [Get standalone app](https://github.com/vuejs/vue-devtools/blob/master/shells/electron/README.md)
+
 - [Workaround for Safari](https://github.com/vuejs/vue-devtools/blob/master/docs/workaround-for-safari.md)
 
 #### Open component in editor