v0.1.0 - Core Theme: patterns, dark mode, block styles, style variations

- Add 16 block patterns across 7 new categories (hero, features, CTA,
  testimonials, pricing, contact, text)
- Add dark mode toggle with localStorage persistence and system preference
  detection (Bootstrap 5.3 data-bs-theme)
- Register 17 custom block styles mapping Bootstrap components to WordPress
  blocks (cards, alerts, tables, buttons, etc.)
- Add 4 style variations: Ocean, Forest, Sunset, Midnight
- Add sidebar template part and "Blog with Sidebar" custom template
- Add Inter and Lora variable fonts with fontFace declarations
- Add Display font size (fluid 2.5rem-3.5rem)
- Update translations (en_US .pot, de_CH .po) with all new strings
- Bump version to 0.1.0

Co-Authored-By: Claude <noreply@anthropic.com>

src/scss/_variables.scss

@@ -35,6 +35,10 @@ $container-max-widths: (
 // Typography - using system fonts (matching theme.json)
 $font-family-sans-serif: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", "Liberation Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
 
+// Additional font families
+$font-family-inter: Inter, system-ui, -apple-system, sans-serif;
+$font-family-serif: Lora, Georgia, "Times New Roman", serif;
+
 // Enable dark mode
 $enable-dark-mode: true;