add poject model.

Function to update the time.

Edit ft.

Update the time fragment.

Add edit mode to tf.

Add delete function.

Add events handling for deleting timefragment.

Add delete and edit icons.

Set empty string as default note.

Set empty string default value of note

Add key shortcut.

Show the saved time fragments.

Save and get all TF.

Add TF in callback just when it is saved into the DB.

add some api.