Update Dockerfile

Dockerfile

@@ -31,9 +31,12 @@ WORKDIR /webodm
 # Fix permissions for the WebODM directory
 RUN chmod -R 755 /webodm
 
-# Ensure the user has the correct permissions
-RUN useradd -m webodmuser
-RUN chown -R webodmuser:webodm /webodm
+# Ensure the user and group have the correct permissions
+RUN groupadd webodmgroup
+RUN useradd -m -g webodmgroup webodmuser
+RUN chown -R webodmuser:webodmgroup /webodm
+
+# Switch to the new user
 USER webodmuser
 
 # Install WebODM dependencies