Add printing styles

[origontec]

Steps to reproduce

1. print (ctrl +p)

Expected behaviour

all formatting should be printed as the screen viiew, (see screen 1)

Actual behaviour

The printed page does not preserve the screen formatting. (see screen 2)

Server configuration

Operating system:

Web server: Server version: Apache/2.2.15 (Unix) Database: postgres (PostgreSQL) 8.4.20 PHP version: PHP 5.5.34 ownCloud version: 9.0 Calendar version: (see ownCloud apps page) 1.0

[georgehrke]

There are no dedicated print styles yet

[georgehrke]

Very low priority for now though

[c-holtermann]

A first simple step seems to be to add another css for media print:

@media print {
	.fc-scroller {overflow: visible !important;};
}

this prevents the events further down the screen to be cut even if zoomed out.

Made it https://github.com/owncloud/calendar/pull/825.

It would be nice to print on multiple pages but that's another step.