feat: Enhance chapter parameters with dynamic text area updates

- Implemented area_change function to update prompt_system in session state.
- Modified text area to use dynamic keys and on_change functionality for better interactivity.
- Updated tab titles to reflect chapter titles instead of names.

pages/chapter_params.py

@@ -1,20 +1,36 @@
 import streamlit as st
-from util import getYamlConfig
+
+def area_change(key, ):
+    new_value = st.session_state[key]
+    
+    key = key[5:]
+    chapter_key = f"chapter_{key}"
+
+    if chapter_key in st.session_state:
+        st.session_state[chapter_key]["prompt_system"] = new_value
+
 
 def page():
     st.subheader("Définissez vos paramètres")
-
-    # Charge la configuration YAML
-    config = getYamlConfig()
     
-    parts = config["chapters"]
-    parts_sorted = sorted(parts, key=lambda part: part.get('num', float('inf')))
+    chapters = []
+    for chapter in st.session_state["chapters"]:
+        chapters.append(st.session_state[f"chapter_{chapter['num']}"])
+        
+    parts_sorted = sorted(chapters, key=lambda part: part.get('num', float('inf')))
     
     # Création de tabs pour chaque 'part' trié
-    tabs = st.tabs([part['name'] for part in parts_sorted])
+    tabs = st.tabs([part['title'] for part in parts_sorted])
     for part, tab in zip(parts_sorted, tabs):
         with tab:
-            st.text_area("Prompt System", part['prompt_system'], height=400)
+            k = f"area_{part["num"]}"
+            st.text_area(
+                "Prompt System",
+                part['prompt_system'],
+                key=k,
+                on_change=area_change,
+                args=(k,),
+                height=400)
 
 
 page()