feat: add support for importing from a directory recursively, closes #179 (#2642)

apps/readest-app/src/utils/path.ts

@@ -1,3 +1,4 @@
+import { join } from '@tauri-apps/api/path';
 import { isContentURI, isFileURI, isValidURL } from './misc';
 
 export const getFilename = (fileOrUri: string) => {
@@ -28,3 +29,7 @@ export const getDirPath = (filePath: string) => {
   parts.pop();
   return parts.join('/');
 };
+
+export const joinPaths = async (...paths: string[]) => {
+  return await join(...paths);
+};