Prepare design specificaiton for refined form elements

[marcelbertram]

Scope

Prepare refinement (no large visual or logic changes) of form components including compact mode and improved outline/focus handling. Preparation for encapsulated components https://github.com/porsche-design-system/porsche-design-system/milestone/73

Out of scope

• New concept for select / multiselect with filter -> https://github.com/porsche-design-system/porsche-design-system/issues/3536

Components

• Switch
• Pin Code
• Select & Multi Select
• Textarea
• Text Field Wrapper -> Input
• Checkbox
• Radio Button

Notes

• Add new components to replace text-field: input, input password, input search, input number
• Rename select wrapper to select and update
• Rename textarea wrapper to textarea and update
• Update multi select component
• Add Select all option for multi select https://github.com/porsche-design-system/porsche-design-system/issues/3031
• Adapt focus border concept for select and multi select and optional align with input, Bug Report: https://github.com/porsche-design-system/porsche-design-system/issues/2702
• Adapt outline color to make it more decent?
• Integrate unified compact mode and use size ratio for nested actions like password toggle inside input-password

Acceptance Criteria

• [ ] Changes done and documented for community