Add support for Meistertask service

src/js/components/Bubble.js

@@ -2,8 +2,8 @@ import React from "react"
 import PropTypes from "prop-types"
 import logoUrl from "images/logo.png"
 
-const Bubble = ({ bookedHours, onClick }) => (
-  <div className="moco-bx-bubble-inner" onClick={onClick}>
+const Bubble = ({ bookedHours }) => (
+  <div className="moco-bx-bubble-inner">
     <img className="moco-bx-logo" src={chrome.extension.getURL(logoUrl)} />
     {bookedHours > 0 ? (
       <span className="moco-bx-booked-hours">{bookedHours.toFixed(2)}</span>
@@ -12,8 +12,7 @@ const Bubble = ({ bookedHours, onClick }) => (
 )
 
 Bubble.propTypes = {
-  bookedHours: PropTypes.number,
-  onClick: PropTypes.func.isRequired
+  bookedHours: PropTypes.number
 }
 
 Bubble.defaultProps = {