Spyder Python 6.0.3

What's new in this version:

Important fixes:
- Restore widget shortcuts to Preferences and allow to change them on the fly
- Add support for IPython enhanced tracebacks and use the selected color scheme in the editor when showing them
- Improve the way users can select the interface font in Preferences
- Activate Open last closed shortcut and restore some missing context menu actions in the Editor
- Fix several issues when getting selections to run them
- Use the INSTALLER_UNATTENDED environment variable to not launch Spyder automatically if installing it in batch/silent mode from the standalone installers

API changes:
- Add plugin_name kwarg to the register_shortcut_for_widget method of SpyderShortcutsMixin
- The add_configuration_observer method was added to SpyderConfigurationObserver
- Add items_elide_mode kwarg to the constructors of SpyderComboBox and SpyderComboBoxWithIcons
- The sig_item_in_popup_changed and sig_popup_is_hidden signals were added to SpyderComboBox, SpyderComboBoxWithIcons and SpyderFontComboBox

Fixed:
- Menuinst error related with the reset shortcut
- Internal console completions are very difficult to read in dark mode
- Shortcuts don't work for new files in the Editor
- Custom shortcut Alt+Shift+Return doesn't work
- REQUIRED.app is installed by Spyder macOS installer
- Delete folded block erases text on following line
- RuntimeError when trying to compute the console banner
- Open last closed shortcut (Ctrl+Shift+T) does not work
- Attempt to add path in Anaconda3/pkgs to Pythonpath manager leads to an error
- Move from using jupyter-desktop-server to jupyter-remote-desktop-proxy for binder setup
- Spyder restart required after changing some shortcuts in Preferences
- Silent install automatically starts the application in Spyder 6
- Restore content of font selection pull-down menu in preferences back to version 5 quality
- Spyder 6 stuck when computing xHeight of monospace font
- Global Run preset default values reappear after restart
- Run selection is missing from the Editor's context menu in Sypder 6.0
- AttributeError in tour when Help plugin is not available
- F9 (run selection) fails from .md file
- KeyError problem when running files
- Many shortcuts not showing in Preferences
- Color Scheme Error: configparser.NoOptionError: No option 'custom-0/normal' in section: 'appearance'
- Search -> Find text only works for Editor
- Traceback color handling and definition need improvements
- Code highlight removed after run selected or current line
- Add support for IPython enhanced tracebacks