fix(eslint): 🐛 svelte's mutable props

Fixed props, exported such as "export let foo;",
being wrongly linted with
"import/no-mutable-exports"

.eslintrc.cjs

@@ -31,6 +31,7 @@ module.exports = {
 			},
 			rules: {
 				'no-undef': ['warn'],
+				'import/no-mutable-exports': 'off',
 			},
 		},
 		{