add per-month links to history

			template   => 'history',

			journeys   => [@journeys],

			year       => $year,

			month      => $months[ $month - 1 ],

			month      => $month,

			month_name => $months[ $month - 1 ],

			statistics => $stats

		}

	);

% my $since = get_user_data()->{registered_at};

% my $now = DateTime->now(time_zone => 'Europe/Berlin');

<div class="row">

	<div class="col s12">

		<ul class="pagination">

			<!--<li class="disabled"><a href="#!"><i class="material-icons">chevron_left</i></a></li>-->

			% my $ref = stash('year') ? stash('year') . '/' . stash('month') : '';

			% while ($since < $now) {

				% my $link_to = $since->strftime('%Y/%m');

				% my $class = $link_to eq $ref ? 'active' : 'waves-effect';

				<li class="<%= $class %>"><a href="/history/<%= $link_to %>"><%= $since->strftime('%m.%Y') %></a></li>

				% $since->add(months => 1);

			% }

			<!--<li class="disabled"><a href="#!"><i class="material-icons">chevron_right</i></a></li>-->

		</ul>

	</div>

</div>

% if (my $stats = stash('statistics')) {

<h1><%= stash('month') %> <%= stash('year') %></h1>

<h1><%= stash('month_name') %> <%= stash('year') %></h1>

	<div class="row">

		<div class="col s12">

			<table class="striped">