Resolve "Backport: Fix audit due to dompurify and braces to v2.9.x"

oleksii sukhodolskyirequested to merge
o.sukhodolskyi/k3k-web-frontend:3559-backport-fix-audit-due-to-dompurify-and-braces-to-v2-9-x into release/v2.9.x

Backport from !3659 (merged) cherry-picks 1ba786c0

Backport from !3666 (merged) cherry-picks 8f4f9f81

Closes #3559 (closed)

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