feat: add TerminalBreadcrumbs component

[snowopsdev]

What does this PR do?

Adds a new TerminalBreadcrumbs component to show the current file path or navigation trail.

Features

• Configurable items array with labels, hrefs, and active state tracking.
• Supports custom separators (defaults to /).
• Includes semantic HTML tags like <nav aria-label="Breadcrumb">.
• Added demo usage in the playground showing interactive links and custom separators.

Type of Change

• 📦 New component

Checklist

• Component works correctly
• Example in playground
• Build passes

[vercel]

@snowopsdev is attempting to deploy a commit to the 0xBuns Team on Vercel.

A member of the Team first needs to authorize it.

[BunsDev]

Triage note: this overlaps directly with #59. Keeping this one open as the narrower breadcrumb implementation because the API is simpler and closer to the repo’s current component surface area (items + hrefs + active state, no path parsing or navigation callback contract to maintain).