Bug: calendar lingers when navigating to a different page

[Grotlo]

When you navigate out of a page which has the calendar, the previous page lingers between a quarter and a half second before destroying. I found that the issue lies with line 18 in Week.svelte:

out:fade={{ duration: 180 }}

<div 
  class="week" 
  in:fly={{ x: direction * 50, duration: 180, delay: 90 }}
  out:fade={{ duration: 180 }}
>

I haven't made a PR on this since I couldn't figure out how to replace that line in CSS.

[antony]

I think this relates to the way transitions work in Svelte/Sapper. I'm experiencing an issue now where the calendar's use of transitions actually breaks Sapper's routing.

[antony]

Relates to this issue: https://github.com/sveltejs/sapper/issues/814