- Introduced color, font, border, shadow, and transition variables.
- Styled nav tabs, tab content, buttons, form elements, and status bar.
- Added tabs for config, CSV management, and email ops.
- Implemented tab switching and config load/save functions.
- Added status message display functionality.
- ✏️ Update HTML title to "Invoice Email Sender"
- 💄 Change font from 'Roboto' to 'Lora' and revise color scheme
- 🌈 Refine button and input styles with new colors, borders, and transitions
- ✨ Implement tab functionality with CSS rules, HTML structure, and JS listeners
- 📑 Revamp status bar style and content
- 🔨 Refactor main.py:
- 🗃️ Adapt read_yaml and write_yaml for enhanced 'email' and 'email_template' structure
- 🔧 Modify handle_data for structure changes
Enhanced the UI with improved padding, line-height, container box shadow, text alignment, and button hover effects. Integrated error handling for the submit button to display HTTP request errors effectively. Corrected script tag indentation.
