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>

patterns/hero-cover.php

@@ -0,0 +1,26 @@
+<?php
+/**
+ * Title: Hero with cover image
+ * Slug: wp-bootstrap/hero-cover
+ * Categories: wp-bootstrap_hero, banner, featured
+ * Description: A full-width hero section with a cover image, heading, paragraph, and call to action button.
+ *
+ * @package WPBootstrap
+ * @since 0.1.0
+ */
+?>
+<!-- wp:cover {"dimRatio":60,"overlayColor":"contrast","isUserOverlayColor":true,"minHeight":500,"align":"full","layout":{"type":"constrained"}} -->
+<div class="wp-block-cover alignfull" style="min-height:500px"><span aria-hidden="true" class="wp-block-cover__background has-contrast-background-color has-background-dim-60 has-background-dim"></span><div class="wp-block-cover__inner-container"><!-- wp:heading {"textAlign":"center","level":1,"fontSize":"display"} -->
+<h1 class="wp-block-heading has-text-align-center has-display-font-size"><?php esc_html_e( 'Build something amazing', 'wp-bootstrap' ); ?></h1>
+<!-- /wp:heading -->
+
+<!-- wp:paragraph {"align":"center","fontSize":"large"} -->
+<p class="has-text-align-center has-large-font-size"><?php esc_html_e( 'Create modern, responsive websites with the power of Bootstrap 5 and the WordPress Site Editor.', 'wp-bootstrap' ); ?></p>
+<!-- /wp:paragraph -->
+
+<!-- wp:buttons {"layout":{"type":"flex","justifyContent":"center"}} -->
+<div class="wp-block-buttons"><!-- wp:button {"fontSize":"medium"} -->
+<div class="wp-block-button has-custom-font-size has-medium-font-size"><a class="wp-block-button__link wp-element-button"><?php esc_html_e( 'Get Started', 'wp-bootstrap' ); ?></a></div>
+<!-- /wp:button --></div>
+<!-- /wp:buttons --></div></div>
+<!-- /wp:cover -->