misc bugfixes

src/index.mjs

@@ -61,7 +61,7 @@ import flummpress from "flummpress";
     req.session = false;
     if(req.url.pathname.match(/^\/(s|b|t|ca)\//))
       return;
-    req.theme = req.cookies.theme ?? 'f0ck';
+    req.theme = req.cookies.theme || 'f0ck';
 
     if(req.cookies.session) {
       const user = await db`
@@ -95,6 +95,8 @@ import flummpress from "flummpress";
         where id = ${+user[0].sess_id}
       `;
 
+      req.session.theme = req.cookies.theme;
+      
       // update userprofile
       await db`
         insert into "user_options" ${