Update .upptimerc.yml

Changed theme to dark

Author: Kryd0s

.upptimerc.yml

@@ -18,6 +18,7 @@ status-website:
   # Add your custom domain name, or remove the `cname` line if you don't have a domain
   # Uncomment the `baseUrl` line if you don't have a custom domain and add your repo name there
   cname: status.heliohost.org
+  theme: dark
   # baseUrl: /your-repo-name
   logoUrl: https://raw.githubusercontent.com/HelioNetworks/status/master/assets/logo-192.png
   name: HelioHost Status