feat: openwebui community backward compatibility

src/routes/modelfiles/create/+page.svelte

+<script lang="ts">
+	import { goto } from '$app/navigation';
+	import { onMount } from 'svelte';
+
+	onMount(async () => {
+		window.addEventListener('message', async (event) => {
+			if (
+				![
+					'https://ollamahub.com',
+					'https://www.ollamahub.com',
+					'https://openwebui.com',
+					'https://www.openwebui.com',
+					'http://localhost:5173'
+				].includes(event.origin)
+			)
+				return;
+			const modelfile = JSON.parse(event.data);
+			sessionStorage.modelfile = JSON.stringify(modelfile);
+
+			goto('/workspace/modelfiles/create');
+		});
+
+		if (window.opener ?? false) {
+			window.opener.postMessage('loaded', '*');
+		}
+	});
+</script>

src/routes/prompts/create/+page.svelte

+<script lang="ts">
+	import { goto } from '$app/navigation';
+	import { onMount } from 'svelte';
+
+	onMount(async () => {
+		window.addEventListener('message', async (event) => {
+			if (
+				![
+					'https://ollamahub.com',
+					'https://www.ollamahub.com',
+					'https://openwebui.com',
+					'https://www.openwebui.com',
+					'http://localhost:5173'
+				].includes(event.origin)
+			)
+				return;
+			const prompts = JSON.parse(event.data);
+			sessionStorage.modelfile = JSON.stringify(prompts);
+
+			goto('/workspace/prompts/create');
+		});
+
+		if (window.opener ?? false) {
+			window.opener.postMessage('loaded', '*');
+		}
+	});
+</script>