common: Add option to reply to a chat message with a file

[thyal]

Description

Add option to reply to a chat message with a file, and also support sending files as broadcast chat messages.

sendFiles now takes an options argument:

sendFiles(files: File[], options?: { parentId?: string; isBroadcast?: boolean });

Summary:

Related Issue:

Testing

1. pnpm build && pnpm dev
2. Open the Room Connection With File Sharing story (x2)
3. Send a chat message, share a file and verify that you can share it as a reply to the previous chat message.
4. Verify that it's displayed correctly in the prebuilt ui as well

Screenshots/GIFs (if applicable)

Checklist

• My code follows the project's coding standards.
• Prefixed the PR title and commit messages with the service or package name
• I have written unit tests (if applicable).
• I have updated the documentation (if applicable).
• By submitting this pull request, I confirm that my contribution is made
  under the terms of the MIT license.

Additional Information

[changeset-bot]

🦋 Changeset detected

Latest commit: 1ba3ce6

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 4 packages

Name	Type
@whereby.com/core	Patch
@whereby.com/browser-sdk	Patch
@whereby.com/assistant-sdk	Patch
@whereby.com/react-native-sdk	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[richtrwhereby]

LGTM and works well ✨