Revert typography values in tokens to px from rem (#16026)
* Revert "feat(base/ui/native): Convert rem to px (#15934)"
This reverts commit 057dc0e4d2.
* Revert "fix(StageParticipantNameLabel): size"
This reverts commit a01f4468a0.
* Revert "fix(subtitles): position part1"
This reverts commit 6c6ed8d7a8.
* Revert "fix(ITypographyType): wrong type of fontSize and lineHeight props"
This reverts commit bffcc9092b.
* revert(Tokens): font sizes and line heights back to px from rem
Turns out there are many places that does not expect rem. Temporary reverting this change from commit 6fa94b0bb4. We should bring it back along with proper handling of rem everywhere.