feat: initialization migration to Nuxt + Backend

This commit initializes both the Nuxt frontend and the Rust backend of
the new version of phundrak.com

backend/settings/base.yaml

@@ -0,0 +1,9 @@
+application:
+  port: 3100
+  version: "0.1.0"
+
+email:
+  host: localhost
+  user: user
+  from: Contact Form <noreply@example.com>
+  password: hunter2