Added known issues for NIM 2.19.0 (#238)

* Added known issues for NIM 2.19.0

* edits to known issue 45845

* Refactor Redocly code to handle new theme (#236)

fix: refactored api page to render with mf

* Apply suggestions from code review

Co-authored-by: Mike Jang <3287976+mjang@users.noreply.github.com>

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Co-authored-by: Lam <150060045+lamATnginx@users.noreply.github.com>
Co-authored-by: Mike Jang <3287976+mjang@users.noreply.github.com>

Author: 3 people