add landing and subscription plans

Signed-off-by: Omar Sánchez Pizarro <omar.sanchez@pistacero.net>

web/landing/.gitignore

@@ -0,0 +1,23 @@
+# build output
+dist/
+.output/
+
+# generated types
+.astro/
+
+# dependencies
+node_modules/
+
+# logs
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+
+# environment variables
+.env
+.env.production
+
+# macOS-specific files
+.DS_Store
+