Add new features: Extraction page

- Navigation Bar
- Sectioning the Page (Categorizing Metadata)
- Color Coding
- Information Icons on Metadata Elements
- Display Entire Input Contents While Hovering
- Suitable Width for Some Elements
- License Suggestion List
- Programming Languages Suggestion List
- JSON Viewer Toggle
- Color-Coded Information
- Copy Icon
- Download Icon
- New Color Code
- Definition about Contributor/Author
- Sort in Contributor Table
- Scrollable Rows in Contributor Table
- Copy Feature from Contributor Table to Author Table
- Displaying Missed Metadata in Contributor/Author tables
- Backward/Forward Buttons for Easier Tab Switching
- Pop up Information Box