enhancement: error ui in threads

[urmauur]

Describe Your Changes

This pull request includes changes to the ErrorMessage component and updates to the Tailwind CSS configuration. The most important changes are focused on improving the styling and appearance of error messages and updating the font families used in the project.

Styling improvements for ErrorMessage component:

• Added a visual indicator next to the error message title and updated the title's styling to be more prominent (web/containers/ErrorMessage/index.tsx).
• Enhanced the styling of the clickable elements within the error message to make them more noticeable (web/containers/ErrorMessage/index.tsx).
• Changed the font style of the error message content to use a serif font for better readability (web/containers/ErrorMessage/index.tsx).

Updates to Tailwind CSS configuration:

• Updated the fontFamily configuration to include a serif font (Roboto Mono) and removed redundant nested fontFamily declaration (web/tailwind.config.js).

Fixes Issues

• Closes feat: Update UI of error notification in Threads #4069
• Closes #

Self Checklist

• Added relevant comments, esp in complex areas
• Updated docs (for bug fixes / features)
• Created issues for follow-up changes or refactoring needed

[github-actions]

Barecheck - Code coverage report

Total: 67.72%

Your code coverage diff: 0.00% ▴

Uncovered files and lines

File	Lines
web/containers/ErrorMessage/index.tsx	40-45, 63-64

[github-actions]

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