🔥 Huge style refactoring by using SvelteKit built-in style tag

It's been tricky but got there finally! Hello `:global`
- Avoid using one global CSS file containing everything
- Import the component SCSS file in a script tag from the component file to allow style scoping and including it only when used

src/components/organisms/Cart.svelte

@@ -1,3 +1,7 @@
+<style lang="scss">
+    @import "../../style/organisms/cart";
+</style>
+
 <script lang="ts">
     import { onMount } from 'svelte'
     import { fade, fly } from 'svelte/transition'