After upgrade, can no longer copy in preview mode

[tedgin]

Describe the bug

In a previous version of Rednotebook (I don't know what the version number was), I could use Ctrl+C to copy formatted content from Rednotebook when it was in preview mode, but now I cannot.

To Reproduce

1. View a day with journal content.
2. Switch to preview mode.
3. Select some of the formatted text in the preview view.
4. Press Ctrl+C or the Copy item from the Edit menu.
5. Change your focus to another application's window, like a Gmail Compose window.
6. Press Ctrl+V to paste.

Expected behavior

I expect the selected text to be displayed in the other application's window.

Screenshots

N/A

Versions:

• RedNotebook version 2.31:
• Operating system and version: Ubuntu 22.04

Log output when reproducing bug

Traceback (most recent call last):
  File "/usr/bin/rednotebook", line 6, in <module>
    import journal
ModuleNotFoundError: No module named 'journal'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/share/rednotebook/rednotebook/gui/menu.py", line 373, in on_copy_menu_item_activate
    self._get_active_editor_widget().emit("copy_clipboard")
TypeError: <main_window.Preview object at 0x7efce9b2d140 (rednotebook+gui+main_window+Preview at 0x558e116d1d50)>: unknown signal name: copy_clipboard

[jendrikseipp]

Thanks for the report! This is fixed now.