Fix Jitsi report iframe title contrast

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

src/routes/idaa/(idaa)/jitsi_reports/+page.svelte

@@ -422,10 +422,12 @@ function export_json() {
     <title>&AElig;: Jitsi Meeting Reports</title>
 </svelte:head>
 
-<div class="w-full max-w-5xl space-y-4 p-4">
+<div class="text-surface-950 dark:text-surface-50 w-full max-w-5xl space-y-4 p-4">
     <!-- Page header: view toggle + export buttons -->
     <div class="flex flex-row flex-wrap items-center justify-between gap-2">
-        <h1 class="text-xl font-bold">Jitsi Meeting Reports</h1>
+        <h1 class="!text-surface-950 dark:!text-surface-50 text-xl font-bold">
+            Jitsi Meeting Reports
+        </h1>
         <div class="flex items-center gap-2">
             <!-- View mode toggle -->
             <div class="border-surface-200-800 flex overflow-hidden rounded-lg border text-sm">