chore: use Cow instead of String for tooltips (#2838)

A QoL change to align `Tooltip` with other elements like `Label`
Release Notes:

- N/A
ffffbbea1fPiotr Osiewicz committed on 8/11/2023, 1:29:55 PM· committed by GitHubparent268f4b1
13 files changedLine totals unavailable