Add Umami analytics blueprint with Docker Compose and configuration

blueprints/umami/template.yml

@@ -0,0 +1,13 @@
+variables:
+  main_domain: ${randomDomain}
+
+config:
+  domains:
+    - serviceName: umami
+      port: 3000
+      host: ${main_domain}
+
+  env:  
+    APP_SECRET: ${base64:64}
+
+  mounts: []