v1.0.0rc1

🌙 This release is a pre-release and requires spaCy v3 (nightly).

• Upgrade to latest Streamlit and use columns and expander widgets for controls.
• Move visualizer-specific settings into main content instead of sidebar.
• Add show_config setting to show config.cfg of currently loaded model.
• Add default_model setting to specify option to auto-select in dropdown.
• Add show_pipeline_info setting to toggle pipeline description in sidebar.
• Update default token attributes to include Token.morph and Token.is_sent_start.
• Add get_default_text callback to generate default text based on nlp object (e.g. language).