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

package.json

@@ -16,6 +16,7 @@
 	"devDependencies": {
 		"@eslint/compat": "^1.4.0",
 		"@eslint/js": "^9.39.1",
+		"@lucide/svelte": "^0.563.1",
 		"@sveltejs/adapter-auto": "^7.0.0",
 		"@sveltejs/kit": "^2.49.1",
 		"@sveltejs/vite-plugin-svelte": "^6.2.1",