【WIP】fix(ActionSheet): fixed multiple style errors

[anlyyao]

ActionSheet

• 修复左对齐场景下，border 左间距错误
• 修复 grid 主题，description 描述文本行高错误
• css vars 与小程序端对齐

[tdesign-bot]

TDesign Component Repositories CI Test Open

Component	Lint	Test	Build	Preview
tdesign-vue	✅	✅	✅	👀
tdesign-vue-next	✅	❌	✅	👀
tdesign-react	✅	✅	✅	👀
tdesign-web-components	✅	✅	✅	👀
tdesign-mobile-vue	✅	✅	✅	👀
tdesign-mobile-react	✅	✅	✅	👀