Apply bundler for renderer process using webpack

[HyunmoAhn]

Purpose

To using library in renderer process like this

Speciality for electron

• import for webpack-dev-server

  • For hot-load in renderer process that is builded by webpack, must import in html above like code.
  • Because webpack-dev-server doen't make html. Must use page/timer.html. It will be change when production build.

• run two process for main and renderer

  • We need to run two process. one is main process using node-mon and another is renderer process using webpack-dev-server. If doesn't use spwan and before method, you must run two terminal and two command. Above code make run once.

• It may be need to build on production [1]. [2] production build setting will config after the make timer feature.

Todo after

Just develop feature of timer!