feat: add footer component

- add lucide svelte icon library
- add footer section to data.json
- add footer types
- add css variables
- update header position mobile

svelte.config.js

@@ -1,7 +1,12 @@
 import adapter from '@sveltejs/adapter-auto';
+import { vitePreprocess } from '@sveltejs/vite-plugin-svelte';
 
 /** @type {import('@sveltejs/kit').Config} */
 const config = {
+	// Consult https://svelte.dev/docs/kit/integrations
+	// for more information about preprocessors
+	preprocess: vitePreprocess(),
+
 	kit: {
 		// adapter-auto only supports some environments, see https://svelte.dev/docs/kit/adapter-auto for a list.
 		// If your environment is not supported, or you settled on a specific environment, switch out the adapter.