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/cta-newsletter.php

@@ -0,0 +1,22 @@
+<?php
+/**
+ * Title: Newsletter signup
+ * Slug: wp-bootstrap/cta-newsletter
+ * Categories: wp-bootstrap_cta, call-to-action
+ * Description: A newsletter signup section with heading, description, and search block.
+ *
+ * @package WPBootstrap
+ * @since 0.1.0
+ */
+?>
+<!-- wp:group {"align":"full","style":{"spacing":{"padding":{"top":"var:preset|spacing|70","bottom":"var:preset|spacing|70"}}},"backgroundColor":"light","layout":{"type":"constrained"}} -->
+<div class="wp-block-group alignfull has-light-background-color has-background" style="padding-top:var(--wp--preset--spacing--70);padding-bottom:var(--wp--preset--spacing--70)"><!-- wp:heading {"textAlign":"center","fontSize":"xx-large"} -->
+<h2 class="wp-block-heading has-text-align-center has-xx-large-font-size"><?php esc_html_e( 'Stay in the loop', 'wp-bootstrap' ); ?></h2>
+<!-- /wp:heading -->
+
+<!-- wp:paragraph {"align":"center","textColor":"secondary"} -->
+<p class="has-text-align-center has-secondary-color has-text-color"><?php esc_html_e( 'Subscribe to our newsletter for updates, tips, and exclusive content.', 'wp-bootstrap' ); ?></p>
+<!-- /wp:paragraph -->
+
+<!-- wp:search {"label":"<?php esc_attr_e( 'Email', 'wp-bootstrap' ); ?>","showLabel":false,"placeholder":"<?php esc_attr_e( 'Enter your email address', 'wp-bootstrap' ); ?>","width":75,"widthUnit":"%","buttonText":"<?php esc_attr_e( 'Subscribe', 'wp-bootstrap' ); ?>","buttonPosition":"button-inside","buttonUseIcon":false,"style":{"border":{"radius":"0.375rem"}}} /--></div>
+<!-- /wp:group -->