Tab Info Exporter 1.1.0

This update adds a redesigned popup, Markdown and plain-text export, domain grouping, a live preview, Spanish UI, and saved settings.

What's new:
- Redesigned popup. The interface has been rebuilt with a cleaner layout, an improved dark theme, custom checkboxes, and icons in the format and action buttons.
- Better preview styling. Markdown items have hover states, JSON keys are highlighted, CSV headers are easier to read, and TXT uses a monospace font.
- Markdown and TXT export. You can now export tabs as Markdown or plain text, not just CSV or JSON. Markdown is the new default.
- Live preview. The popup shows a preview before you copy or download. In Markdown, links are clickable and can focus the existing tab.
- Group by domain. For Markdown and TXT, group tabs under domain headers. You can optionally show tab counts per domain.
- Saved settings. Format, sort, selected fields, grouping, and language are remembered between popup opens.
- Spanish language support. The UI language switch now includes English, Russian, and Spanish.
- Cleaner favicon URLs. Favicons are exported as normal http(s) URLs instead of long base64 data.

Fixes:
- All selected fields now appear correctly in every export format.