feat:find and watch location, use shadcn sonner toast for errors.

- added tailwindcss with shadcn-svelte sonner toasts
- added a location store and a geolation util to find, watch, use and
store locations and their updates
- added a LocationButton to navigate to the current location and handle
errors.
- updated the Map to use LocationButton and go to current location.

vite.config.ts

@@ -1,9 +1,8 @@
+import tailwindcss from '@tailwindcss/vite';
 import { sveltekit } from '@sveltejs/kit/vite';
 import { defineConfig } from 'vite';
 
 export default defineConfig({
-	plugins: [sveltekit()],
-	preview: {
-		allowedHosts: ['ziasvannes.tech']
-	}
+	plugins: [tailwindcss(), sveltekit()],
+	preview: { allowedHosts: ['ziasvannes.tech'] }
 });