refactor(editor): extract note block (#9310)

blocksuite/affine/block-note/src/commands/select-block.ts

@@ -0,0 +1,16 @@
+import type { Command } from '@blocksuite/block-std';
+
+export const selectBlock: Command<'focusBlock'> = (ctx, next) => {
+  const { focusBlock, std } = ctx;
+  if (!focusBlock) {
+    return;
+  }
+
+  const { selection } = std;
+
+  selection.setGroup('note', [
+    selection.create('block', { blockId: focusBlock.blockId }),
+  ]);
+
+  return next();
+};