v2.5.0

Judgels server & client

New features

Revamp the UI/UX of courses.

• Revamp course chapters, pt 1: layout by @fushar in #507
• Revamp course chapters: smoothen transition between chapters by @fushar in #510
• Revamp course chapters: fix mobile layout by @fushar in #511
• Revamp course chapters: simpler problem progress by @fushar in #512
• More responsive layout in mobile by @fushar in #513
• Update chapter problem icon for bundle problems by @fushar in #514
• Revamp course chapters navigation UX by @fushar in #515
• Implement code editor in the right sidebar by @fushar in #516
• Support problem skeletons by @fushar in #517
• Support chapter problem editorial by @fushar in #518
• Set editor submission filename based on selected language by @fushar in #519

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Full Changelog: v2.4.0...v2.5.0