Set template-indent rule to error instead of warn (#1781)

Author: fisker

configs/recommended.js

@@ -113,7 +113,7 @@ module.exports = {
 		// See #1396
 		'unicorn/require-post-message-target-origin': 'off',
 		'unicorn/string-content': 'off',
-		'unicorn/template-indent': 'warn',
+		'unicorn/template-indent': 'error',
 		'unicorn/text-encoding-identifier-case': 'error',
 		'unicorn/throw-new-error': 'error',
 	},