add header to bubble chat

[mmattu-wd]

FLOWISE-381

Adds new option on bot config so we can provide a header to the bubble chat.

Also fixed a small styling issue with the NodeDetailDialog when opening a execution detail with a tools call

When dialog opened with header

[gemini-code-assist]

Summary of Changes

Hello, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request significantly enhances the customization of the bubble chat by allowing the integration of a custom HTML header, providing a more branded and flexible user experience. Additionally, it includes a crucial styling correction for the NodeDetailDialog to ensure proper display and overlay behavior, especially when tool call details are presented within a chat environment that utilizes the new custom header.

Highlights

• Bubble Chat Custom Header: Introduced a new configuration option (headerHtml) to allow users to provide custom HTML content that will be rendered as a header in the bubble chat window. This enhances customization capabilities for the chat interface.
• NodeDetailDialog Styling Fix: Resolved a styling issue within the NodeDetailDialog component, specifically when displaying execution details related to tool calls. The dialog now correctly wraps content and adjusts its positioning to account for custom chat headers.
• Improved Modal Overlay Behavior: Implemented a Portal mechanism for the NodeDetailDialog to ensure that when a custom header is present in the bubble chat, the dialog correctly overlays the entire chat window, including the header, preventing visual obstructions.

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[mmattu-wd]

This was the styling fix for tools calls:
Before

After

[gemini-code-assist]

Code Review

This pull request introduces a new feature allowing a custom HTML header to be added to the chat bubble. The implementation correctly uses DOMPurify to sanitize the HTML, preventing potential XSS vulnerabilities. Additionally, it includes a styling fix for the NodeDetailDialog to handle long tool call details gracefully. The changes are well-implemented, with necessary adjustments to layout and component properties to support the new header. I have one minor suggestion to improve code clarity by replacing a magic number with a named constant.

[chloebyun-wd]

@mmattu-wd Oh I noticed it was only added to the bubble experience and not the Full one, was that intentional and the header is only needed for the Bubble ?

[mmattu-wd]

@mmattu-wd Oh I noticed it was only added to the bubble experience and not the Full one, was that intentional and the header is only needed for the Bubble ?

yep that is intentional for now!