disable theme switching + fixed some visual bugs

frontend/src/layouts/Layout.astro

@@ -3,7 +3,6 @@ import '../styles/global.css';
 import '@fontsource-variable/fraunces';
 import '@fontsource-variable/eb-garamond';
 import '@fontsource-variable/jetbrains-mono';
-import ThemeSwitcher from '../components/react/ThemeSwitcher';
 import Search from '../components/react/Search';
 import LogoutButton from '../components/react/LogoutButton';
 import EditableText from '../components/react/EditableText';
@@ -77,9 +76,11 @@ const hasContact = (siteConfig.contact_links?.length ?? 0) > 0;
 		{image && <meta name="twitter:image" content={image} />}
 		<link rel="alternate" type="application/rss+xml" title={siteConfig.title} href="/feed.xml" />
 		{siteConfig.custom_css && <style set:html={siteConfig.custom_css} />}
-		<script is:inline define:vars={{ defaultTheme: siteConfig.theme }}>
-			const savedTheme = localStorage.getItem('user-theme') || defaultTheme || 'salon';
-			document.documentElement.classList.add(savedTheme);
+		<script is:inline define:vars={{ siteTheme: siteConfig.theme }}>
+			// Theme is owner-controlled (site config). Drop any legacy
+				// per-visitor override so everyone sees the configured theme.
+				try { localStorage.removeItem('user-theme'); } catch (e) {}
+			document.documentElement.classList.add(siteTheme || 'salon');
 		</script>
 		<script is:inline>
 			// When a page is restored from the back/forward cache (e.g. after
@@ -129,7 +130,6 @@ const hasContact = (siteConfig.contact_links?.length ?? 0) > 0;
 							<a href="/contact" class="topbar-control">Contact</a>
 						)}
 						<Search client:idle />
-						<ThemeSwitcher client:only="react" defaultTheme={siteConfig.theme} />
 						<span class="topbar-divider" aria-hidden="true"></span>
 						{isAdmin ? (
 							<LogoutButton client:idle />