use integrated transitions in demos

site/content/examples/transitions-custom/App.html

@@ -1,6 +1,6 @@
 <script>
-	import * as eases from 'eases-jsnext';
-	import { fade } from 'svelte-transitions';
+	import * as eases from 'svelte/easing';
+	import { fade } from 'svelte/transition';
 
 	export let visible;
 

site/content/examples/transitions-fade/App.html

@@ -1,5 +1,5 @@
 <script>
-	import { fade } from 'svelte-transitions';
+	import { fade } from 'svelte/transition';
 
 	export let visible;
 </script>

site/content/examples/transitions-fly/App.html

@@ -1,5 +1,5 @@
 <script>
-	import { fly } from 'svelte-transitions';
+	import { fly } from 'svelte/transition';
 
 	export let visible;
 </script>

site/content/examples/transitions-in-out/App.html

@@ -1,5 +1,5 @@
 <script>
-	import { fade, fly } from 'svelte-transitions';
+	import { fade, fly } from 'svelte/transition';
 
 	export let visible;
 </script>