fix: template env file (#155)

Co-authored-by: MarioCadenas <MarioCadenas@users.noreply.github.com>

Author: MarioCadenas

template/.env.tmpl

@@ -15,4 +15,4 @@ PGSSLMODE=require
 {{- end}}
 DATABRICKS_APP_PORT=8000
 DATABRICKS_APP_NAME={{.projectName}}
-FLASK_RUN_HOST=0.0.0.0
+FLASK_RUN_HOST=localhost