Add new function to add folder by path

preload.js

@@ -48,6 +48,8 @@ contextBridge.exposeInMainWorld('electronAPI', {
   relocateFolder: (oldPath, newPath) => ipcRenderer.invoke('relocate-folder', oldPath, newPath),
   pickFolder: () => ipcRenderer.invoke('pick-folder'),
   repoHasCommit: (repoPath, commitHash) => ipcRenderer.invoke('repo-has-commit', repoPath, commitHash),
+  addFolderByPath: (folderPath) => ipcRenderer.invoke('add-folder-by-path', folderPath),
+
 });
 
 ipcRenderer.on('repo-updated', (_e, folder) => {