v3.45.0

• chore(build): scope pdfjs-dist pdf_viewer.css to .bp-doc (#1672) (6c78a62), closes #1672
• chore(release): 3.45.0 (bc8f066)
• feat(video): add V2 controls bar with redesigned scrubber and filmstrip (#1671) (3ef96c1), closes #1671