Add missing path in the Docker app.ini template (#2181)

Dockerfile

 
 COPY docker /
 COPY --from=build-env /go/src/code.gitea.io/gitea/gitea /app/gitea/gitea
+RUN ln -s /usr/local/bin/gitea /app/gitea/gitea

docker/etc/templates/app.ini

 [repository]
 ROOT = /data/git/repositories
 
+[repository.local]
+LOCAL_COPY_PATH = /data/gitea/tmp/local-repo
+
 [repository.upload]
 TEMP_PATH = /data/gitea/uploads
 
 ROOT_URL         = $ROOT_URL
 DISABLE_SSH      = $DISABLE_SSH
 SSH_PORT         = $SSH_PORT
+LFS_CONTENT_PATH = /data/git/lfs
 
 [database]
 PATH = /data/gitea/gitea.db
 USER    = $DB_USER
 PASSWD  = $DB_PASSWD
 
+[indexer]
+ISSUE_INDEXER_PATH = /data/gitea/indexers/issues.bleve
+
 [session]
 PROVIDER_CONFIG = /data/gitea/sessions