[Feature] 13665 date time format not respected

[``* `#13665` Date/Time format not respected``](https://www.openproject.org/work_packages/13665)
[``* `#13664` Timezone not respected``](https://www.openproject.org/work_packages/13664)
by convention we just used

<pre>
angular.module(...)

.directive(...)
.directive(...);

</pre>