style: Apply Prettier formatting with 4-space indentation

Applied consistent code formatting across the project using Prettier, now configured to use 4-space indentation instead of tabs.

src/lib/components/ui/button/index.ts

@@ -1,17 +1,17 @@
 import Root, {
-	type ButtonProps,
-	type ButtonSize,
-	type ButtonVariant,
-	buttonVariants
+    type ButtonProps,
+    type ButtonSize,
+    type ButtonVariant,
+    buttonVariants
 } from './button.svelte';
 
 export {
-	Root,
-	type ButtonProps as Props,
-	//
-	Root as Button,
-	buttonVariants,
-	type ButtonProps,
-	type ButtonSize,
-	type ButtonVariant
+    Root,
+    type ButtonProps as Props,
+    //
+    Root as Button,
+    buttonVariants,
+    type ButtonProps,
+    type ButtonSize,
+    type ButtonVariant
 };