refactor(checkbox): [checkbox] refactor checkbox x-design theme

[zzcr]

PR

PR Checklist

Please check if your PR fulfills the following requirements:

• [x] The commit message follows our Commit Message Guidelines
• [ ] Tests for the changes have been added (for bug fixes / features)
• [ ] Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

• [ ] Bugfix
• [ ] Feature
• [ ] Code style update (formatting, local variables)
• [x] Refactoring (no functional changes, no api changes)
• [ ] Build related changes
• [ ] CI related changes
• [ ] Documentation content changes
• [ ] Other... Please describe:

What is the current behavior?

Issue Number: N/A

What is the new behavior?

Does this PR introduce a breaking change?

• [ ] Yes
• [ ] No

Other information

Summary by CodeRabbit

Release Notes

• New Features

  • Introduced new CSS variables for checkbox components to enhance styling consistency.
  • Added a mixin for handling disabled checkbox borders.

• Bug Fixes

  • Updated hover and checked states for checkboxes to ensure proper styling.

• Refactor

  • Streamlined CSS variable usage across checkbox, checkbox button, and checkbox group components.
  • Removed deprecated properties and components to simplify the codebase.

• Chores

  • Deleted outdated demo files and test cases related to checkbox components.

[coderabbitai[bot]]

Walkthrough

The changes involve the removal of specific properties from the checkbox component, including border and size, across various files. Additionally, several Vue components and test files related to checkbox functionality have been deleted. The CSS variable structure has been updated to a new naming convention, enhancing consistency across styles. Various files have undergone refactoring to streamline the use of CSS variables, and new mixins have been introduced to improve styling logic.

Changes

File Path	Change Summary
examples/sites/demos/apis/checkbox.js	Removed border (boolean) and size ('medium' | 'small' | 'mini') properties from the checkbox component.
examples/sites/demos/pc/app/checkbox/border-composition-api.vue	Deleted Vue component implementing a checkbox with a tooltip.
examples/sites/demos/pc/app/checkbox/border.spec.ts	Deleted Playwright test for the checkbox component with a border.
examples/sites/demos/pc/app/checkbox/border.vue	Deleted Vue component for a checkbox with a tooltip feature.
examples/sites/demos/pc/app/checkbox/webdoc/checkbox.js	Removed demo configuration for checkbox with demoId: 'border'.
packages/theme/src/base/vars.less	Added new CSS properties for icon control states and renamed existing properties for clarity.
packages/theme/src/card/index.less	Adjusted border width and margin properties to fixed pixel values.
packages/theme/src/checkbox-button/index.less	Refactored CSS variable usage, updated class definitions, and streamlined styling.
packages/theme/src/checkbox-button/vars.less	Updated CSS variable declarations and function name for consistency.
packages/theme/src/checkbox-group/index.less	Refactored CSS variable usage and removed redundant styles.
packages/theme/src/checkbox-group/vars.less	Renamed function and updated CSS variable declarations for consistency.
packages/theme/src/checkbox/index.less	Updated styling variables and structure for the checkbox component.
packages/theme/src/checkbox/vars.less	Comprehensive update of CSS variable declarations and function name for the checkbox component.
packages/theme/src/mixins/checkbox.less	Introduced new mixin for disabled checkbox borders and simplified existing mixins.

Possibly related PRs

• #2104: Changes to button styles that may impact checkbox visual consistency.
• #2130: Adaptation of the checkbox component to the SMB theme, aligning with property removals.
• #2148: Updates to the button component's styles, which may have implications for checkbox consistency.
• #2158: Updates to the Cascader component's design may relate to overall theme adjustments including the checkbox.
• #2160: Updates to the vars.less file, which include renaming and restructuring of CSS variables that could impact checkbox styling.

Poem

🐰 In fields of green, the checkboxes gleam,
With borders gone, they dance and beam.
A tooltip here, a mixin there,
Consistency blooms in the fresh air.
Hooray for changes, let’s hop and cheer,
For every little tweak brings us near! 🌼

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