Fix NGINX config and Blinko working directory

- Move temp path directives into http block
- Set working directory to /app/data for Blinko
- Add BLINKO_DATA_PATH environment variable

supervisor/supervisord.conf

@@ -26,7 +26,7 @@ priority=10
 
 [program:blinko]
 command=/usr/local/bin/dumb-init node /app/code/dist/index.js
-directory=/app/code
+directory=/app/data
 user=cloudron
 autostart=true
 autorestart=true
@@ -35,4 +35,4 @@ stdout_logfile_maxbytes=0
 stderr_logfile=/dev/stderr
 stderr_logfile_maxbytes=0
 priority=20
-environment=NODE_ENV="production",HOME="/app/data"
+environment=NODE_ENV="production",HOME="/app/data",BLINKO_DATA_PATH="/app/data/.blinko"