* BREAKING CHANGE: refactor with Dart Sass (supplement to #741)
* chore: update .gitignore to include .vercel and .env*.local
* CI: add build script for Hugo site deployment on Vercel
* CI: update build script for Hugo site deployment on Vercel
* refactor: update SCSS layout styles and introduce page-style mixin
* refactor: reorganize SCSS files and improve layout structure
* refactor: rename copy button classes and update related styles
* feat: optimize code highlighting for diff language
* refactor: update codeblock configuration and enhance code wrapper functionality
* fix: extra blank lines would appear when copying lines containing code highlighting
* refactor: enhance code block wrapper functionality and add new styles (mac style)
* refactor: enhance code block normal mode
* feat: do noting for code block simple mode
* feat: add copy btn for code block modes mac and simple
* refactor: add code-related variables and update styles for code blocks and gist layout
* feat: update code copy button visibility on hover for larger screens
* feat: update code block mode attribute and remove mac wrapper
* feat!: code block parameters accurate to a single
Remove the `data-open` attribute and use `.open` instead.
* refactor: enhance initCopyCode method to accept optional button parameter
* feat: improve code/diagram copy button styles and transitions for better visibility
* fix: disable copy buttons for simple/mac mode code blocks when copyable set to false
* chore: rename normal partial to code-header
* feat: add preview and expand feature for code blocks (close#312)
* fix: adjust transition timing for code header and fade-out animation
* test: update code block test case
* docs: update comments for code highlight and markup configurations
* feat: adjust code header background color darkening for light and dark themes
* fix: hide aside and breadcrumb pseudo-elements on small screens
* perf: change the code copy button and code expand button to server-side rendering
* fix: the code expand button obscured the code content
* fix: update code background and header colors for improved visibility
* fix: ensure code copy button is only added for copyable code blocks
* feat(code block): add lineNosToggler and lineWrapToggler params and feature for code blocks
* refactor: code syntax highlighting styles
* fix: update background color for line numbers and ensure proper sticky effect
* feat(code block): add support for code file names in code blocks
* fix: code review for PR #665
* feat(i18n): add Japanese and Korean translations; update toggle options in multiple languages
* docs: update configurations and comments
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