update filter to be more user friendly

app.py

@@ -39,32 +39,29 @@ st.title("🌍 CGD Survey Explorer (Live DB)")
 
 st.sidebar.header("🔎 Filter Questions")
 
-# Dropdown filters (optional)
-countries = sorted(df["country"].dropna().unique())
-years = sorted(df["year"].dropna().unique())
+# COUNTRY filter with "All" toggle
+all_countries = sorted(df["country"].dropna().unique())
+use_all_countries = st.sidebar.checkbox("Include All Countries", value=True)
 
-selected_countries = st.sidebar.multiselect("Select Country", countries, default=countries)
-selected_years = st.sidebar.multiselect("Select Year", years, default=years)
-keyword = st.sidebar.text_input("Keyword Search (in question)", "")
+if use_all_countries:
+    selected_countries = all_countries
+else:
+    selected_countries = st.sidebar.multiselect("Select Countries", all_countries)
 
-# Column selector
-all_columns = df.columns.tolist()
-default_columns = ["country", "question", "responses"]
-selected_columns = st.sidebar.multiselect("Columns to Display", all_columns, default=default_columns)
+# YEAR filter with "All" toggle
+all_years = sorted(df["year"].dropna().unique())
+use_all_years = st.sidebar.checkbox("Include All Years", value=True)
 
-# Apply filters
-filtered = df[
-    df["country"].isin(selected_countries) &
-    df["year"].isin(selected_years)
-]
+if use_all_years:
+    selected_years = all_years
+else:
+    selected_years = st.sidebar.multiselect("Select Years", all_years)
 
-if keyword:
-    filtered = filtered[filtered["question"].str.contains(keyword, case=False, na=False)]
+# Free-text keyword filter
+keyword = st.sidebar.text_input("Keyword Search (in question)", "")
 
-# Show results
-st.markdown("### Filtered Results")
-if not filtered.empty:
-    st.dataframe(filtered[selected_columns])
-else:
-    st.info("No matching questions found.")
+# Column selection
+all_columns = df.columns.tolist()
+default_columns = ["country", "year", "question_text", "answer_text"]
+selected_columns = st.sidebar.multiselect("Columns to Display", all_columns, default=default_columns)