feat: updated error styling for input component

[adietrich3074]

Summary

Simple update to error styling for inputs

Change List (describe the changes made to the files)

• Colored border and inset box-shadow applied to input field
• Removal of color applied to input label when in error state
• Addition of error-pink color variable

Acceptance Test (how to verify the PR)

View input component with invalid property set to true

Regression Test (how to make sure this PR doesn't break old functionality)

Only styling is affected. Will have no effect on the functionality of the input.

Things to look for during review

• Make sure all references to phillips class prefix is using the prefix variable
• All major areas have a data-testid attribute.
• All strings should be translatable.
• Unit test should be written and should have a coverage of 90% or higher in all areas.
• Changes or new components should either write new or update existing documentation.
• PR should link and close out an existing issue
• Make sure all commits messages follow convention and are appropriate for the changes

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