Fix blog code blocks and syntax highlighting#8
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hieunv3vmo merged 8 commits intomainfrom Nov 13, 2025
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- Add syntax-highlighted code blocks with copy button functionality - Improve code block color contrast with better Shiki themes (github-light/github-dark-dimmed) - Add support for Docusaurus-style admonitions (:::tip:::, :::warning:::, etc.) - Replace emoji icons with professional SVG icons from simple-icons for social share buttons - Add hover effects and visual feedback for copy buttons - Improve accessibility with proper aria-labels Technical changes: - Install remark-directive and remark-admonitions for MDX admonition support - Add custom remark plugin to handle admonition rendering - Add CSS styles for 5 admonition types (tip, warning, danger, note, info) - Implement JavaScript code block copy functionality - Update BlogPostLayout to use SocialIcon component for Twitter/LinkedIn
- Create new FlagIcon component with SVG-based US and Vietnam flags - Update LanguageBadge to use SVG flags instead of Unicode emoji (🇺🇸, 🇻🇳) - Update LanguageSwitcher to display flag icons instead of text (EN/VI) - SVG flags render consistently across all browsers and operating systems - Improves accessibility and visual consistency This fixes the issue where Unicode emoji flags don't render properly on some browsers and operating systems.
- Remove language text label from switcher button - Display only the flag icon for cleaner UI - Increase flag size from w-5 to w-6 for better visibility - Keep aria-label and title for accessibility
- Add Japan flag (jp) support to FlagIcon component - Update blog index pages to use FlagIcon component instead of emoji - Remove all Unicode emoji flags (🇺🇸, 🇻🇳, 🇯🇵) from codebase - Update i18n translation files (en.ts, vi.ts) to remove emoji flags - Update constants.ts to remove emoji flags from tagline and country Benefits: - Consistent rendering across all browsers and operating systems - No more missing/broken emoji flags on older systems - Better accessibility with SVG icons - Cleaner, more professional appearance Files modified: - src/components/FlagIcon.astro (added Japan flag) - src/pages/blog/index.astro (use FlagIcon component) - src/pages/vi/blog/index.astro (use FlagIcon component) - src/i18n/en.ts (removed emoji from bio, location, language labels) - src/i18n/vi.ts (removed emoji from bio, location, language labels) - src/utils/constants.ts (removed emoji from tagline and education country)
- Change flag icons from square (24x24) to rectangular (30x20) viewBox - Use 3:2 aspect ratio which matches standard country flag proportions - Update default class from w-4 h-4 to w-6 h-4 for better visibility - Adjust star positions and counts for US flag to fit new dimensions - Make flags look more natural and recognizable
- Change from w-6 h-6 (square) to w-9 h-6 (rectangular) - Maintains 3:2 aspect ratio to match flag icon viewBox - Prevents flag from being cropped in language switcher
- Revert from 30x20 rectangular to 24x24 square viewBox - Change LanguageSwitcher from w-9 h-6 back to w-6 h-6 - Change default flag size from w-6 h-4 back to w-5 h-5 - Square format works better for consistent display
- Remove flag icon from language switcher - Show simple 'EN' or 'VI' text instead - Simpler, cleaner, and more reliable than flag icons - Adjust padding from p-2 to px-3 py-2 for better text spacing
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Technical changes: