Fix Codex tab visibility and catalogue autofill

app.py

@@ -70,6 +70,20 @@ CSS = """
 
 footer { display: none !important; }
 
+.gradio-container [role="tablist"] {
+  position: sticky !important;
+  top: 0 !important;
+  z-index: 60 !important;
+  background: #fffaf0 !important;
+  border-bottom: 1px solid var(--studio-line);
+  padding: 8px 10px;
+}
+
+.gradio-container [role="tab"] {
+  opacity: 1 !important;
+  visibility: visible !important;
+}
+
 #hidden-export, #hidden-status {
   max-width: 1180px;
   margin: 0 auto 18px auto;
@@ -77,7 +91,7 @@ footer { display: none !important; }
 
 #studio-actions {
   max-width: 1180px;
-  margin: -705px auto 16px auto;
+  margin: 18px auto 16px auto;
   padding-left: 18px;
   position: relative;
   z-index: 5;