Rename block .editor files to .config

Also drop the color and leftSideBarVisible overrides from PageEditor.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014xjLo7mFxZXfPDCHuKX4Dz

components/shopify/search-results.config.tsx

@@ -0,0 +1,25 @@
+import { ComponentConfig } from '@reacteditor/core';
+import { Search } from 'lucide-react';
+import SearchResults from '@/components/shopify/search-results';
+
+export type SearchResultsBlockProps = {
+  title?: string;
+  placeholder?: string;
+};
+
+const searchResultsEditor: ComponentConfig<SearchResultsBlockProps> = {
+  label: 'Search results',
+  icon: <Search size={16} />,
+  category: 'commerce',
+  defaultProps: {
+    title: 'Search',
+    placeholder: 'Search products',
+  },
+  fields: {
+    title: { label: 'Title', type: 'text', contentEditable: true },
+    placeholder: { label: 'Search placeholder', type: 'text' },
+  },
+  render: (props) => <SearchResults {...props} />,
+};
+
+export default searchResultsEditor;