[css-text-decor] Propdef table for text-decoration-thickness shouldn't say "Percentages: N/A"

[Loirooriol]

https://drafts.csswg.org/css-text-decor-4/#text-decoration-thickness-property

Percentages: N/A

But it does accept percentages, so I guess it should say the same as line-height: https://drafts.csswg.org/css-inline/#line-height-property

Percentages: computed relative to 1em

[schenney-chromium]

Interestingly the verbiage below the table does say that percentages are resolved against 1em. It seems this is just a spec error needing correction.

[Loirooriol]

Same for text-underline-offset https://drafts.csswg.org/css-text-decor-4/#underline-offset