[bug]: The placeholder doesn't have the right color in some inputs

[lucasboilly]

What version of design-system are you using?

Browser: Arc

What's Wrong?

The placeholder doesn't have the right color in some inputs, it seems it's using a color that is not in the design system.

To Reproduce

You can see it in:

• Field
• Combobox
• Searchbar
• DatePicker
• NumberInput
• TextInput
• Textarea

Expected Behaviour

The placeholder should have a neutral600 color, as in Select.