Merge pull request #24231 from overleaf/msm-fix-separator-footer

[web] Fix separator in thin-footer

GitOrigin-RevId: 8b5700ea7998e9fe451dded10321757ee5fa47a6

services/web/frontend/js/features/ui/components/bootstrap-5/footer/thin-footer.tsx

@@ -69,11 +69,13 @@ function ThinFooter({
               </>
             ) : null}
             {showLanguagePicker ? (
-              <li>
-                <LanguagePicker showHeader />
-              </li>
+              <>
+                <li>
+                  <LanguagePicker showHeader />
+                </li>
+                {hasCustomLeftNav ? <Separator /> : null}
+              </>
             ) : null}
-            {hasCustomLeftNav ? <Separator /> : null}
             {leftItems?.map(item => <FooterItemLi key={item.text} {...item} />)}
           </ul>
           <ul className="site-footer-items col-lg-3 text-end">