Add Modal triggers

src/routes/components/ModalDeletion.md

@@ -1,16 +1,9 @@
 ```svelte example raised
 <script lang="ts">
 	import { ModalDeletion, Button } from 'omorphia'
-
-	let open = false
 </script>
 
-<Button
-	color="danger"
-	on:click={() => {
-		open = true
-	}}>
-	Delete account
-</Button>
-<ModalDeletion type="account" key="venashial" bind:open />
+<ModalDeletion type="account" key="venashial" let:trigger>
+	<Button slot="trigger" color="danger" on:click={trigger}>Delete account</Button>
+</ModalDeletion>
 ```