fix: resolveu problema de nome de documento no selected columns

Início.py

@@ -103,8 +103,10 @@ else:
     
     
     if selected_columns:
-        selected_columns.append('id')
-        selected_columns.append('Nome do documento')
+        if 'id' not in selected_columns:
+            selected_columns.append('id')
+        if 'Nome do documento' not in selected_columns:
+            selected_columns.append('Nome do documento')
         displayed_df = filtered_df[selected_columns]
     else:
         displayed_df = filtered_df