chore: Move editor into codebase (#2930)

shared/editor/queries/isInCode.ts

@@ -0,0 +1,15 @@
+import { EditorState } from "prosemirror-state";
+import isMarkActive from "./isMarkActive";
+
+export default function isInCode(state: EditorState): boolean {
+  if (state.schema.nodes.code_block) {
+    const $head = state.selection.$head;
+    for (let d = $head.depth; d > 0; d--) {
+      if ($head.node(d).type === state.schema.nodes.code_block) {
+        return true;
+      }
+    }
+  }
+
+  return isMarkActive(state.schema.marks.code_inline)(state);
+}