Release v0.9.3

[yoshi389111]

[0.9.3] - 2026-06-15

Changed

• Improved the performance of the rainbow theme. @K-H-A-L-I-D perf: replace per-block SMIL animate with shared CSS keyframes in rainbow theme #148
• Fixed the clean npm script to work on Windows. fix: add glob flag to rimraf for windows #154

Security

• Upgrade and clean up dependent libraries.

[Copilot]

Pull request overview

Release prep for v0.9.3 by bumping the package version and recording the release notes, along with updating generated distribution artifacts.

Changes:

• Bump project version to 0.9.3 in package.json and package-lock.json.
• Add a 0.9.3 entry (and an Unreleased section) to CHANGELOG.md.
• Update dist/licenses.txt as part of the dist artifact set.

Reviewed changes

Copilot reviewed 2 out of 5 changed files in this pull request and generated no comments.

File	Description
package.json	Version bump to 0.9.3 (release metadata).
package-lock.json	Lockfile version fields updated to 0.9.3.
dist/licenses.txt	Generated license bundle changed (currently drops proxy-from-env license text).
CHANGELOG.md	Adds Unreleased section and the 0.9.3 release notes.

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