feat(themes): polish workshop moderation and theme controls

Add the in-app tag editor, installed-theme reporting, readable moderation and report dialogs, and notification layering fixes. Persist server-assigned workshop IDs for stable republishes, hide self-reporting, fix report-button contrast, and disable macOS autocorrect and spell checking across launcher windows.

src/lib/components/ui/dialog/dialog.svelte

@@ -0,0 +1,10 @@
+<script lang="ts">
+  import { Dialog as DialogPrimitive, type WithoutChildrenOrChild } from 'bits-ui';
+
+  let {
+    open = $bindable(false),
+    ...restProps
+  }: WithoutChildrenOrChild<DialogPrimitive.RootProps> = $props();
+</script>
+
+<DialogPrimitive.Root bind:open {...restProps} />