fix: restore broken table in AI FAQ customer data section

[zoltan-baba]

Summary

• The first table in the "How is Customer data used with AI on Bitrise?" section had a malformed structure: both category names and their descriptions were crammed into the header row, leaving an empty second column and no proper data rows.
• Restructured the table with a clear two-column header (Customer content category / Description) and two proper data rows.

Test plan

• Confirm the table renders correctly at the affected section of the AI FAQ page.

🤖 Generated with Claude Code

[github-actions]

Preview: https://fix-ai-faq-table-format.bitrise-docs.pages.dev