Update src/streamlit_app.py

src/streamlit_app.py

@@ -231,7 +231,7 @@ SOLVENTS_DB = {
 # 语言选择
 language = st.sidebar.selectbox(
     "🌐 Language/语言:", 
-    ["中文", "English"],
+    ["English", "中文"],
     help="Choose your preferred language / 选择您的首选语言"
 )
 lang = LANGUAGES[language]