Move home page into svelte and remove some old junk

svelte/src/util/Modal.svelte

@@ -10,6 +10,7 @@ import { fade } from 'svelte/transition';
 export let title = "";
 export let width = "800px";
 export let height = "auto";
+export let padding = false;
 let visible = false;
 
 const load_bg = background => {
@@ -56,7 +57,7 @@ const keydown = e => {
 				</button>
 			</slot>
 		</div>
-		<div class="body">
+		<div class="body" class:padding>
 			<slot></slot>
 		</div>
 	</div>
@@ -120,4 +121,7 @@ const keydown = e => {
 	flex-shrink: 1;
 	overflow: auto;
 }
+.padding {
+	padding: 10px;
+}
 </style>

svelte/src/util/Util.svelte

@@ -35,4 +35,28 @@ export function domain_url() {
 	return url;
 }
 
+
+export const add_upload_history = id => {
+	// Make sure the user is not logged in, for privacy. This keeps the
+	// files uploaded while logged in and anonymously uploaded files
+	// separated
+	if (document.cookie.includes("pd_auth_key")) { return; }
+
+	let uploads = localStorage.getItem("uploaded_files");
+	if (uploads === null) { uploads = ""; }
+
+	// Check if there are not too many values stored
+	if (uploads.length > 3600) {
+		// 3600 characters is enough to store 400 file IDs. If we exceed that
+		// number we'll drop the last two items
+		uploads = uploads.substring(
+			uploads.indexOf(",") + 1
+		).substring(
+			uploads.indexOf(",") + 1
+		);
+	}
+
+	// Save the new ID
+	localStorage.setItem("uploaded_files", id + "," + uploads);
+}
 </script>