Add @fileOverview to all .js file, closes #496

Author: tanx

src/App.js

@@ -1,3 +1,7 @@
+/**
+ * @fileOverview main module that renders the app.
+ */
+
 import React, { Component } from 'react';
 import Main from './view/main';
 

src/computed/channel.js

@@ -1,3 +1,7 @@
+/**
+ * @fileOverview computed values that are used in channel UI components.
+ */
+
 import { computed, extendObservable } from 'mobx';
 import { toAmountLabel, toCaps } from '../helper';
 

src/computed/invoice.js

@@ -1,3 +1,7 @@
+/**
+ * @fileOverview computed values that are used in invoice UI components.
+ */
+
 import { computed, extendObservable } from 'mobx';
 import { toLabel } from '../helper';
 

src/computed/loader-msg.js

@@ -1,3 +1,7 @@
+/**
+ * @fileOverview computed values that are used in loader UI components.
+ */
+
 import { computed, extendObservable } from 'mobx';
 
 const ComputedLoaderMsg = store => {

src/computed/notification.js

@@ -1,3 +1,7 @@
+/**
+ * @fileOverview computed values that are used in notification UI components.
+ */
+
 import { computed, extendObservable } from 'mobx';
 import { toCaps, formatNumber } from '../helper';
 

src/computed/payment.js

@@ -1,3 +1,7 @@
+/**
+ * @fileOverview computed values that are used in payment UI components.
+ */
+
 import { computed, extendObservable } from 'mobx';
 import { toSatoshis, toAmountLabel, toLabel } from '../helper';
 

src/computed/seed.js

@@ -1,3 +1,7 @@
+/**
+ * @fileOverview computed values that are used in seed UI components.
+ */
+
 import { computed, extendObservable } from 'mobx';
 
 const ComputedSeed = store => {

src/computed/setting.js

@@ -1,3 +1,7 @@
+/**
+ * @fileOverview computed values that are used in settings UI components.
+ */
+
 import { computed, extendObservable } from 'mobx';
 import { formatNumber } from '../helper';
 import { UNITS, FIATS } from '../config';

src/computed/transaction.js

@@ -1,3 +1,7 @@
+/**
+ * @fileOverview computed values that are used in transaction UI components.
+ */
+
 import { computed, extendObservable } from 'mobx';
 import { toAmountLabel, toCaps } from '../helper';
 

src/computed/wallet.js

@@ -1,3 +1,7 @@
+/**
+ * @fileOverview computed values that are used in wallet UI components.
+ */
+
 import { computed, extendObservable } from 'mobx';
 import { toAmountLabel } from '../helper';
 import { UNITS, FIATS } from '../config';