ui/react: move hooks into a subdirectory

Author: denis-sokolov

src/ui/react/hooks.ts renamed to src/ui/react/hooks/index.ts

@@ -1,5 +1,5 @@
-import type { DebugConfig, FullDB } from "../../core";
-import type { ReactType } from "./types";
+import type { DebugConfig, FullDB } from "../../../core";
+import type { ReactType } from "../types";
 
 function flat<T>(list: T[][]): T[] {
   return list.reduce((a, b) => a.concat(b));