feat: poll block image variant

[csiyang]

Summary by CodeRabbit

• New Features

  • Introduced grid and list display variants for radio question options, allowing options to be shown as cards with images or as a vertical list.
  • Added support for displaying placeholder grayscale logo images when no option image is provided.
  • Enhanced the "Add Option" button for both grid and list views with improved styling and accessibility.

• Bug Fixes

  • Improved test coverage and updated test selectors to align with new UI structures and identifiers.

• Style

  • Updated styling for radio options to better support both grid and list layouts, including theme-aware colors, spacing, and interactive states.

• Documentation

  • Updated localization strings for "Add Option" and removed unused or redundant translations.

• Tests

  • Added and updated tests for grid and list variants, verifying rendering, interaction, and add option functionality.

• Chores

  • Refactored component structure to separate grid and list variants and streamline option rendering.
  • Simplified option addition by delegating "Add Option" UI handling to radio question variants.
  • Added a grayscale logo placeholder image for options without images.

[jesus-film-bot]

Locks and plans deleted for the projects and workspaces modified in this pull request:

• dir: infrastructure workspace: default