fix streamlit loc deprecated warning

queries/process_mrbts.py

@@ -22,8 +22,11 @@ def process_mrbts_data(file_path: str) -> pd.DataFrame:
     df_mrbts = dfs["MRBTS"]
     df_mrbts.columns = df_mrbts.columns.str.replace(r"[ ]", "", regex=True)
 
-    df_mrbts = df_mrbts[df_mrbts["MRBTS"].apply(lambda x: str(x).isnumeric())]
-    df_mrbts["CODE"] = df_mrbts["MRBTS"].apply(extract_code_from_mrbts)
+    # Create an explicit copy of the filtered DataFrame to avoid SettingWithCopyWarning
+    df_mrbts = df_mrbts[df_mrbts["MRBTS"].apply(lambda x: str(x).isnumeric())].copy()
+    
+    # Now use .loc to set values in the DataFrame
+    df_mrbts.loc[:, "CODE"] = df_mrbts["MRBTS"].apply(extract_code_from_mrbts)
     df_mrbts = df_mrbts[["MRBTS", "CODE", "name", "btsName"]]
 
     UtilsVars.all_db_dfs.append(df_mrbts)