qw/timer (#23)

* Rename logo and add 32x32 version

* Set timer icon if a timer is running

* Do not query activities on initialization

* Show timer in bubble if timed activity exists

* Pass timed activity to App

* Code cleanup

* Show timer view and stop timer

* Make hours optional

* Use booked seconds instead of hours

* Add type submit to form button

* Define colors as sass variables⎄

* Style timer view

* Show start timer submit label

* Update view layouts and content

* Update version and changelog

* Dyanically set iframe height

* Reduce h1 font size

* Add svg webpack loader

* Parse empty string (TimeInputParser)

* Forward ref in Popup component

* Start time on current day only, format buttons

* Improve styling

* Set standard height as iframe default height, validate form

* Upgrade packages to supress react warning

* Show activity form in popup after timer was stoped

* Use stop-watch icon in timer view

* Fix empty description

* Close TimerView if timer stopped for current service

* Style timerview

* Improve timer view styling

* qw/setting-time-tracking-hh-mm (#24)

* Format duration depending on settingTimeTrackingHHMM

* Fix formatDuation without second argument

* Fix time format after updating bubble

* Add tests for formatDuration

src/images/icons/stopwatch-light.svg

@@ -0,0 +1 @@
+<svg aria-hidden="true" focusable="false" data-prefix="fal" data-icon="stopwatch" class="svg-inline--fa fa-stopwatch fa-w-14" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><path fill="currentColor" d="M393.3 141.3l17.5-17.5c4.7-4.7 4.7-12.3 0-17l-5.7-5.7c-4.7-4.7-12.3-4.7-17 0l-17.5 17.5c-35.8-31-81.5-50.9-131.7-54.2V32h25c6.6 0 12-5.4 12-12v-8c0-6.6-5.4-12-12-12h-80c-6.6 0-12 5.4-12 12v8c0 6.6 5.4 12 12 12h23v32.6C91.2 73.3 0 170 0 288c0 123.7 100.3 224 224 224s224-100.3 224-224c0-56.1-20.6-107.4-54.7-146.7zM224 480c-106.1 0-192-85.9-192-192S117.9 96 224 96s192 85.9 192 192-85.9 192-192 192zm4-128h-8c-6.6 0-12-5.4-12-12V172c0-6.6 5.4-12 12-12h8c6.6 0 12 5.4 12 12v168c0 6.6-5.4 12-12 12z"></path></svg>