docs(user-guide): document table copy-to-clipboard button

[Shagon1k]

Summary

Documents the new Copy button that appears on markdown tables in assistant responses — added in EPMCDME-13243. When clicked, it copies the full table to the clipboard and shows a brief confirmation toast.

Changes

• Added docs/user-guide/assistants/copy-table.md — new standalone page explaining the table copy button, positioned after the HTML Preview page in the sidebar
• Updated sidebars.ts — registered the new page in the Assistants navigation
• Added faq/how-do-i-copy-a-table-from-an-assistant-response.md — FAQ entry for the feature

Testing

• Tested locally with npm start
• All pages render correctly
• Images display properly
• Internal links work
• Sidebar navigation works

Quality Checks

• npm run check passes (typecheck + lint + commitlint)
• No MDX compilation errors
• No raw angle brackets (<text> must be `<text>`)
• Sidebar references document IDs (not filenames)
• Images stored locally next to content (not in static/img/)
• Commit messages follow Conventional Commits
• No secrets or credentials in documentation

Additional Notes

Related UI change: EPMCDME-13243 MR

[alezander86]

It would be helpful if you could highlight where this button is located with a screenshot.

[alezander86]

https://gitbud.epam.com/epm-cdme/codemie-onboarding#documenting-your-feature

Note — Screenshot guidelines:

Show the full screen — screenshots must not be cropped; the entire browser or application window should be visible. This gives the reader full context: they can see where in the application they are, which page or section is open, and what surrounds the feature being described — not just an isolated fragment of the UI.

Blur sensitive data — before publishing, blur any information that could identify a person or expose internal infrastructure: names, surnames, email addresses, usernames, IP addresses, hostnames, internal URLs, API endpoints, tokens, or any other credentials. A free tool for this is Awesome Screenshot & Screen Recorder, which has a built-in blur feature.

Use 100% zoom — do not zoom in the browser or OS display settings when taking screenshots.

Use standard aspect ratios — capture at 4:3, 16:9, or 16:10. Avoid ultrawide formats (21:9, 43:18, etc.) as they make content harder to read in documentation.

[alezander86]

From the screenshot, I can see personal information, browser tabs, the user's profile picture, and parts of the browser window. Here's an example of how the screenshot should look after this information is hidden.

[codemie-ai]

[AUTO_CLOSE_WARNING] ⏰ This pull request is older than 14 days and will be automatically closed in 16 more days (when it reaches 30 days old)! To maintain this PR, either convert it to Draft or complete your changes and merge.

[elluvium]

Could you please address Oleksandr's commentaries