refactor(editor): rename block-std to std (#11250)

Closes: BS-2946

blocksuite/framework/std/src/inline/range/active.ts

@@ -0,0 +1,14 @@
+/**
+ * Check if the active element is in the editor host.
+ * TODO(@mirone): this is a trade-off, we need to use separate awareness store for every store to make sure the selection is isolated.
+ *
+ * @param editorHost - The editor host element.
+ * @returns Whether the active element is in the editor host.
+ */
+export function isActiveInEditor(editorHost: HTMLElement) {
+  const currentActiveElement = document.activeElement;
+  if (!currentActiveElement) return false;
+  const currentEditorHost = currentActiveElement?.closest('editor-host');
+  if (!currentEditorHost) return false;
+  return currentEditorHost === editorHost;
+}