Update gitignore and example env

.gitignore

@@ -4,10 +4,7 @@
 *.min.css
 *.compiled.css
 node_modules/
-vendor/
 __pycache__/
 .venv/
-nohup.out
-yarn-error.log
 .env
 app/static/main.js

example.env

@@ -10,4 +10,4 @@ TESTING=True
 # Own
 WEBHOOK_KEY=PLACEHOLDER
 SECRET_KEY=PLACEHOLDER
-DATABASE_URI = 'postgresql://db@localhost/db'
+DATABASE_URI='postgresql://db@localhost/db'