LCFS - Add Vitest Test Coverage for Layouts/PublicLayout Components

**Describe the task**\nThe PublicLayout component currently shows 0% test coverage. This component is critical for the overall application structure and should be verified for correct rendering, layout behavior, and integration with child components.\n\n**Purpose**\nTo ensure that the PublicLayout component functions correctly and integrates well with other components, improving the overall reliability of the application.\n\n**Acceptance Criteria**\n- [ ] PublicLayout renders correctly and passes props or context to its children.\n- [ ] Conditional logic or dynamic rendering within the layout is tested.\n- [ ] Layout behaves correctly on various screen sizes.\n- [ ] User interactions with interactive elements are simulated and tested.\n\n**Additional context**\n- Overall coverage for these files should reach a minimum threshold (e.g., 80%).

Start by locating the PublicLayout component and the existing Vitest configuration or neighboring layout tests. Add coverage for rendering, child props or context, conditional behavior, responsive layouts, and interactive elements, then verify the stated minimum coverage threshold is met.

Written by the indexing model from the issue text.