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.

eslint.config.js

@@ -7,32 +7,32 @@ import prettier from 'eslint-config-prettier';
 import globals from 'globals';
 
 export default tseslint.config(
-	eslint.configs.recommended,
-	...tseslint.configs.recommended,
-	svelte.configs['flat/recommended'],
-	prettier,
-	{
-		languageOptions: {
-			globals: {
-				...globals.browser,
-				...globals.node
-			}
-		}
-	},
-	{
-		files: ['**/*.svelte'],
-		languageOptions: {
-			parserOptions: {
-				parser: tseslint.parser
-			}
-		}
-	},
-	{
-		ignores: ['build/', '.svelte-kit/', 'node_modules/']
-	},
-	{
-		rules: {
-			'@typescript-eslint/no-unused-vars': 'warn'
-		}
-	}
+    eslint.configs.recommended,
+    ...tseslint.configs.recommended,
+    svelte.configs['flat/recommended'],
+    prettier,
+    {
+        languageOptions: {
+            globals: {
+                ...globals.browser,
+                ...globals.node
+            }
+        }
+    },
+    {
+        files: ['**/*.svelte'],
+        languageOptions: {
+            parserOptions: {
+                parser: tseslint.parser
+            }
+        }
+    },
+    {
+        ignores: ['build/', '.svelte-kit/', 'node_modules/']
+    },
+    {
+        rules: {
+            '@typescript-eslint/no-unused-vars': 'warn'
+        }
+    }
 );