This updates the help text to be visible in dark mode. We now use the

weak foreground color in Ink for this text, ensuring it'll look fine in

both light and dark modes.
The API token policy menu's "Custom" menu item was hard-coded to blue to

resemble a link. We now use the Ink link menu foreground color instead.

Tested the menu and the link in light and dark modes.
Made sure it was clickable and visible.