rename frontend to web and update contributing guide (#2509)

* rename frontend to web and update contributing guide

* rename this time

* fix build

* restructure rust code

* update documentation

* update descriptions

* Update CONTRIBUTING.md

Co-authored-by: J H <2364004+Blu-J@users.noreply.github.com>

---------

Co-authored-by: Aiden McClelland <me@drbonez.dev>
Co-authored-by: Aiden McClelland <3732071+dr-bonez@users.noreply.github.com>
Co-authored-by: J H <2364004+Blu-J@users.noreply.github.com>

core/README.md

@@ -0,0 +1,35 @@
+# StartOS Backend
+
+- Requirements:
+  - [Install Rust](https://rustup.rs)
+  - Recommended: [rust-analyzer](https://rust-analyzer.github.io/)
+  - [Docker](https://docs.docker.com/get-docker/)
+
+## Structure
+
+- `startos`: This contains the core library for StartOS that supports building `startbox`.
+- `container-init` (ignore: deprecated)
+- `js-engine`: This contains the library required to build `deno` to support running `.js` maintainer scripts for v0.3
+- `snapshot-creator`: This contains a binary used to build `v8` runtime snapshots, required for initializing `start-deno`
+- `helpers`: This contains utility functions used across both `startos` and `js-engine`
+- `models`: This contains types that are shared across `startos`, `js-engine`, and `helpers`
+
+## Artifacts
+
+The StartOS backend is packed into a single binary `startbox` that is symlinked under
+several different names for different behaviour:
+
+- `startd`: This is the main daemon of StartOS
+- `start-cli`: This is a CLI tool that will allow you to issue commands to
+  `startd` and control it similarly to the UI
+- `start-sdk`: This is a CLI tool that aids in building and packaging services
+  you wish to deploy to StartOS
+- `start-deno`: This is a CLI tool invoked by startd to run `.js` maintainer scripts for v0.3
+- `avahi-alias`: This is a CLI tool invoked by startd to create aliases in `avahi` for mDNS
+
+## Questions
+
+If you have questions about how various pieces of the backend system work. Open
+an issue and tag the following people
+
+- dr-bonez