Add home store and use it

Author: IzumiSy

_app/client.js

@@ -1,6 +1,7 @@
 const choo = require('choo')
 const app = choo()
 
+app.use(require('./stores/home'))
 app.route('/', require('./pages/home'))
 
 // Support for Server-Side Rendering

_app/stores/home.js

@@ -0,0 +1,8 @@
+module.exports = function (state, emitter) {
+  state.title = ''
+
+  emitter.on('update', function({ value }) {
+    state.title = value
+    emitter.emit('render')
+  })
+}