chore(docs): refactor pages (#1144)

* chore(docs): refactor pages

* fix: links

* fix: broken link

* refactor: post install steps using partials

docs/docs/developer/architecture.md

@@ -0,0 +1,39 @@
+---
+sidebar_position: 1
+---
+
+# Architecture
+
+## High Level Diagram
+
+![Immich Architecture](./img/app-architecture.png)
+
+## Technology
+
+Immich is a full-stack [TypeScript](https://www.typescriptlang.org/) application, with a [Flutter](https://flutter.dev/) mobile app.
+
+### Mobile
+
+- [Flutter](https://flutter.dev/)
+- [Riverpod](https://riverpod.dev/) for state management.
+
+### Web
+
+- [SvelteKit](https://kit.svelte.dev/)
+- [tailwindcss](https://tailwindcss.com/)
+
+### Server
+
+- [Node.js](https://nodejs.org/)
+- [Nest.js](https://nestjs.com/)
+- [TypeORM](https://typeorm.io/) for database management.
+- [Jest](https://jestjs.io/) for testing.
+
+### Database
+
+- [PostgreSQL](https://www.postgresql.org/)
+- [Redis](https://redis.io/) for job queuing.
+
+### Web Server
+
+- [NGINX](https://www.nginx.com/) for internal communication between containers and load balancing when scaling.