Added Roles, User Management, fixed bugs, added FlexTable component (should be renamed to GridTable), other table components and test code should be removed down the line, added admin function to fix broken data structures.

imports/ui/Announcer.svelte

@@ -0,0 +1,26 @@
+<!-- Announcer.svelte - From the tinro docs: https://github.com/AlexxNB/tinro -->
+<!-- This will be included in the App.svelte so that URL changes are announced in a way that accessibility tools can read the page. -->
+<script>
+	import { router } from 'tinro';
+	$: current = $router.path === '/' ? 'Home' : $router.path.slice(1);
+</script>
+
+<div aria-live="assertive" aria-atomic="true">
+	{#key current}
+		Navigated to {current}
+	{/key}
+</div>
+
+<style>
+    div {
+        position: absolute;
+        left: 0;
+        top: 0;
+        clip: rect(0 0 0 0);
+        clip-path: inset(50%);
+        overflow: hidden;
+        white-space: nowrap;
+        width: 1px;
+        height: 1px;
+    }
+</style>