chore: Update metainfo

[Fei1Yang]

Summary by Sourcery

Chores:

• Update the metainfo XML file by modifying the summary and adding a homepage URL.

[sourcery-ai]

Reviewer's Guide by Sourcery

This PR updates the metainfo XML file by modifying the application summary and removing historical release notes. The changes simplify the application description and clean up outdated development version release information.

No diagrams generated as the changes look simple and do not need a visual representation.

File-Level Changes

Change	Details	Files
Updated the application summary description	Shortened and simplified the application summary text Added homepage URL	assets/source/linux/rune.metainfo.xml
Removed historical development release notes	Removed release notes for development versions 0.0.0-dev.5 through 0.0.0-dev.23	assets/source/linux/rune.metainfo.xml

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[sourcery-ai]

Hey @Fei1Yang - I've reviewed your changes and they look great!

Here's what I looked at during the review

• 🟢 General issues: all looks good
• 🟢 Security: all looks good
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good
• 🟢 Documentation: all looks good

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