🧹 Optimize apt installation process in Dockerfile

[PeterDaveHello]

Merge multiple apt install commands into a single command to minimize redundant dependency resolution. Also, remove apt cache files after installation to reduce Docker image size.

How to test

Follow these steps to verify this PR works as intended:

• Run docker build command like: docker build -t hedy ..

Checklist

• Contains one of the PR categories in the name
• Describes changes in the format above
• Links to an existing issue or discussion
• Has a "How to test" section

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[mergify]

Thank you for contributing! Your pull request is now going on the merge train (choo choo! Do not click update from main anymore, and be sure to allow changes to be pushed to your fork).