v0.3.0 - Polish: accessibility, security, performance, RTL, French translation

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

assets/css/editor-style.css

@@ -11950,6 +11950,43 @@ h1, .h1, h2, .h2, h3, .h3, h4, .h4, h5, .h5, h6, .h6, blockquote, caption, figca
   background: var(--bs-body-bg);
 }
 
+.wp-bootstrap-skip-link {
+  position: absolute;
+  top: -100%;
+  left: 0;
+  z-index: 1040;
+  padding: 0.5rem 1rem;
+  background: var(--bs-primary);
+  color: #fff;
+  text-decoration: none;
+  font-weight: 600;
+}
+.wp-bootstrap-skip-link:focus {
+  top: 0;
+}
+
+.post-thumbnail {
+  aspect-ratio: 16/9;
+  object-fit: cover;
+  width: 100%;
+}
+
+.card-thumbnail {
+  aspect-ratio: 3/2;
+  object-fit: cover;
+}
+
+.sidebar-heading {
+  letter-spacing: 1.6px;
+}
+
+.hero-overlay {
+  background-position: center;
+  background-size: cover;
+  background-repeat: no-repeat;
+  opacity: 0.3;
+}
+
 .editor-styles-wrapper {
   font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
   line-height: 1.5;