🔥 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/atoms/IconEarth.svelte

@@ -1,3 +1,11 @@
+<style lang="scss">
+    svg {
+        width: 24px;
+        height: 24px;
+        color: $color-gray;
+    }
+</style>
+
 <script lang="ts">
     export let animate: boolean = false