Infrastructure as code (#3)

* Moves website to website/

* Adds terraform gitignores

* Terraform with AWS provider

* Initialises Terraform

* Locals and variables for provider

* Fetches SSL certificate from ACM

* S3 static website bucket

* CloudFront distribution

* Route53 records

* Deployment workflow uses secret S3 bucket suffix

* Adds README

---------

Co-authored-by: Joe Carstairs <65492573+Sycamost@users.noreply.github.com>

website/src/pages/error.astro

@@ -0,0 +1,14 @@
+---
+import Page from '../layouts/Page.astro';
+---
+
+<Page title="Got lost?" description="Error page for Joe's personal website">
+  <main>
+    <h1>Got lost?</h1>
+
+    <p>
+      If you’re on this page, something’s probably gone wrong. Try going to
+      my <a href="/">homepage</a> instead.
+    </p>
+  </main>
+</Page>