Fix Dockerfile build error that stopped on linting checks.

Dockerfile

@@ -104,7 +104,7 @@ RUN \
     gosu wekan /home/wekan/.meteor/meteor add standard-minifier-js && \
     gosu wekan /home/wekan/.meteor/meteor npm install && \
     gosu wekan /home/wekan/.meteor/meteor build --directory /home/wekan/app_build && \
-    cp /home/wekan/app/fix-download-unicode/cfs_access-point.js /home/wekan/app_build/bundle/programs/server/packages/ && \
+    cp /home/wekan/app/fix-download-unicode/cfs_access-point.txt /home/wekan/app_build/bundle/programs/server/packages/cfs_access-point.js && \
     chown wekan:wekan /home/wekan/app_build/bundle/programs/server/packages/cfs_access-point.js && \
     gosu wekan sed -i "s|build\/Release\/bson|browser_build\/bson|g" /home/wekan/app_build/bundle/programs/server/npm/node_modules/meteor/cfs_gridfs/node_modules/mongodb/node_modules/bson/ext/index.js && \
     cd /home/wekan/app_build/bundle/programs/server/npm/node_modules/meteor/npm-bcrypt && \