1.8.4

1.8.4

Review cleanup, no functional changes. / 审查遗留项清理，无功能变更。

• Removed all remaining forced style overrides (compact delimiter dropdown, search highlight); higher-specificity selectors instead. / 移除全部剩余的强制覆盖样式（紧凑分隔符下拉、搜索高亮），改用更高特异性选择器。
• Fixed URL text being unreadable when a row/column is highlighted. / 修复行/列高亮时 URL 文字看不清的问题。
• Removed a redundant type assertion. / 移除一处多余的类型断言。