Expand FormGroup error messages to include all RHF error types

[frankhock]

Description

component: FormGroup

RHF has 6 native validation types:

• required
• min
• max
• minLength
• maxLength
• pattern

atm we only render an error for required. Ideally, we'd keep parity with RHF so devs aren't confused why another error type doesn't render.

User Stories

• As a [persona], I want [feature/task] so that [benefit/reason].

• As a dev, I should be able to use any RHF native validations type and see its respective error message via FormGroup.errors prop.

Acceptance Criteria

• [Criteria 1]
• [Criteria 2]
• [Criteria 3]

Screenshots (if applicable)

[Add screenshots, if relevant, to provide visual context.]