Update application entry point and Docker configuration

- Corrected the import statement in app.py to reference the ragadoc package, ensuring consistency in the codebase.
- Renamed the application service in docker-compose.yml from 'app' to 'ragadoc' for improved clarity and alignment with the package name.

Author: clstaudt

app.py

@@ -3,7 +3,7 @@
 from the ragadoc package.
 
 This is now a much simpler main entry point that uses the UI modules
-from the ragnarok package.
+from the ragadoc package.
 """
 
 import streamlit as st

docker-compose.yml

@@ -1,8 +1,10 @@
 version: '3.8'
 
+name: ragadoc
+
 services:
   # Streamlit application
-  app:
+  ragadoc:
     build: .
     container_name: ragadoc-app
     ports: