feat: add projects component

- add projects section to data.json
- add projects types
- add css variables
- update headline styles
- rename intro to profile

src/lib/components/ProjectEntry.svelte

@@ -0,0 +1,20 @@
+<script lang="ts">
+	import type { ProjectEntry } from '$lib/types/data';
+
+	let {
+		title,
+		description,
+		taskHeadline,
+		tasks,
+		toolsHeadline,
+		tools
+	}: ProjectEntry = $props();
+</script>
+
+<article>
+
+</article>
+
+<style>
+
+</style>