fix(tabs): [tabs] Adapt to the old theme style

[chenxi-20]

PR

PR Checklist

Please check if your PR fulfills the following requirements:

• [ ] 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)
• [ ] 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

• New Features

  • Enhanced styling for tab components, including updated hover and active states.
  • Introduced new CSS variables for improved customization of tab elements.

• Bug Fixes

  • Adjusted visual elements for better consistency across different tab orientations.

• Documentation

  • Updated variable references for improved clarity and usability in styling.

[coderabbitai[bot]]

Walkthrough

The changes involve significant updates to the styling of the tabs component in two LESS files: index.less and vars.less. Modifications include new variables for tab dimensions and styles, adjustments to active and hover states, and refinements to separator styles. The updates aim to enhance the visual presentation and responsiveness of the tabs without altering their core functionality.

Changes

File Path	Change Summary
packages/theme/src/tabs/index.less	- Adjusted styles for various tab states, including removal of border-bottom for active tabs. - Introduced new styles for hover and active states, updated icon colors, and refined separator spaces.
packages/theme/src/tabs/vars.less	- Added new CSS variables for tab dimensions and styles. - Updated existing variables for background and text colors. - Removed obsolete variables related to card types.

Possibly related PRs

• #2270: This PR focuses on refactoring the Tabs Theme, which includes extensive modifications to the styling rules for the tabs component, aligning closely with the changes made in the main PR regarding the styling of the tabs component.
• #2425: This PR addresses issues related to the close button functionality within the tab component, which is relevant to the overall styling and behavior of the tabs as described in the main PR.
• #2497: This PR optimizes the documentation related to the tabs component, which is pertinent to the changes made in the main PR that enhance the visual presentation and usability of the tabs.

Suggested labels

refactoring

Suggested reviewers

• zzcr

🐰 In the land of tabs, where colors play,
Borders and margins dance in a new way.
With hover and active, they twinkle and shine,
A stylish update, oh so divine!
So hop along, let's celebrate this spree,
For our tabs are now as bright as can be! 🌟

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