theme_flip 1.0.3

Fixes:

• Fixed low-contrast focus indicators on the theme toggle button and popover theme rows — the focus ring is now solid instead of alpha-blended, meeting WCAG 2.1 SC 1.4.11 (Non-text Contrast) in both light and dark mode.
• Fixed insufficient contrast on the "active theme" badge in dark mode (introduced a dedicated --tf-badge-bg token so the badge no longer inherits the accent color's failing white-on-blue contrast).
• Fixed keyboard tab order through the theme list so it now follows visual reading order.
• Added an "Original" tag marking the visitor's actual site theme in the popover list, so switching back is unambiguous.
• Fixed a handful of CI-flagged stylelint property-ordering and code-formatting issues (no behavior change).