chore(master): release 4.3.0

[XPoet]

🤖 I have created a release beep boop

4.3.0 (2026-06-11)

🌟 Features

• add custom cdn configuration (#380) (96a39c2)
• add custom tag timeline (07a1d98)
• built-in search data generation function, no longer dependent on Hexo plugin (#385) (59b4c89)
• optimize toggle theme logic (bd29980)

🐞 Bug Fixes

• fix copyright script logic (7b29304)
• fix scren flash when load (27f35be)
• Fix the low visibility of addition and deletion highlights in the default highlight theme (a1280ee)
• fixed the issue of abnormal display of the code element in the header (#388) (d737858)
• head.ejs: fix screen flash when loading (727dbf2)

🎨 Styling

• add author badge text color variable (426a8f2)

🛠 Performance Improvements

• disable pjax in Google translate service (#384) (46a7f01)

🎯 CI

• update ISSUE_TEMPLATE (cc9dd99)

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[XPoet]

🤖 Release is at https://github.com/XPoet/hexo-theme-keep/releases/tag/v4.3.0 🌻