chore: fix lint config issues (disable jsx-one-expression-per-line, remove stale prettier comment)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: joker23

.eslintrc.js

@@ -57,6 +57,7 @@ module.exports = {
     ...stylisticConfig.rules,
     '@stylistic/quotes': ['error', 'single', { avoidEscape: true }],
     '@stylistic/operator-linebreak': ['error', 'after'],
+    '@stylistic/jsx-one-expression-per-line': 'off',
     'simple-import-sort/imports': ['error', {
       groups: [
         ['^\\u0000'],

packages/sdk/browser/contract-tests/entity/src/main.ts

@@ -1,4 +1,3 @@
-// eslint-disable-next-line prettier/prettier
 import './style.css';
 import TestHarnessWebSocket from './TestHarnessWebSocket';