[BUG] Mermaid version used in app is outdated

[boasbakker]

Bug Description
The version of mermaid used in ChatBox is outdated, which causes new features like the venn diagram feature to not render at all.
Documentation of the Venn diagram feature: https://mermaid.js.org/syntax/venn.html

Steps to Reproduce

1. Enter this in a chat message:

```mermaid
venn-beta
  title "Team overlap"
  set Frontend
  set Backend
  union Frontend,Backend["APIs"]
```

2. Send the message

Expected Results
The Venn diagram should render

Actual Results
Nothing rendered

Screenshots

Desktop (please complete the following information):

• Operating System: Windows 11
• Application Version: 1.19.0