Fix Dockerfile vanity COPY (#1604)

Corrected an unintended mistake in the COPY commands for adding the
vanity files to the Docker container, causing only the last file
contents to be added to the file '/app/vanity/*'

Dockerfile

@@ -31,15 +31,15 @@ COPY --from=build /app/build/*Server /app/
 
 # Necessary suplimentary files
 COPY --from=build /app/build/*.ini /app/configs/
-COPY --from=build /app/build/vanity/*.* /app/vanity/*
+COPY --from=build /app/build/vanity/*.* /app/vanity/
 COPY --from=build /app/build/navmeshes /app/navmeshes
 COPY --from=build /app/build/migrations /app/migrations
 COPY --from=build /app/build/*.dcf /app/
 
 # backup of config and vanity files to copy to the host incase 
 # of a mount clobbering the copy from above
 COPY --from=build /app/build/*.ini /app/default-configs/ 
-COPY --from=build /app/build/vanity/*.* /app/default-vanity/*
+COPY --from=build /app/build/vanity/*.* /app/default-vanity/
 
 # needed as the container runs with the root user
 # and therefore sudo doesn't exist