feat: download file when click in readonly mode

[kagol]

PR

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our Commit Message Guidelines
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Documentation content changes
• Other... Please describe:

What is the current behavior?

Issue Number: N/A

What is the new behavior?

Does this PR introduce a breaking change?

• Yes
• No

Other information

Summary by CodeRabbit

Release Notes

• New Features
  • In read-only mode, clicking on files now automatically triggers a download instead of displaying file options.

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[coderabbitai]

Caution

Review failed

The pull request is closed.

Walkthrough

The FileModule now downloads files directly when clicked in read-only mode, replacing the previous file bar display behavior. A new downloadFile method programmatically creates a temporary anchor element with the file's download href and filename, triggers the download, and cleans up.

Changes

Cohort / File(s)	Summary
File download in read-only mode packages/fluent-editor/src/modules/file/modules/file-module.ts	Added downloadFile(fileDom) method to handle file downloads. Modified click handler to trigger download when Quill is disabled instead of displaying file bar.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

Poem

🐰 A fluffy tale of files set free,
When read-only mode is all we see,
A click, a whoosh, the download flows,
No bars to show, just where it goes! 📥✨

✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch kagol/download-file-when-click-in-readonly-mode

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