normalBorder function
Implementation
UvBorder normalBorder() => const UvBorder(
top: Side(content: '─'),
bottom: Side(content: '─'),
left: Side(content: '│'),
right: Side(content: '│'),
topLeft: Side(content: '┌'),
topRight: Side(content: '┐'),
bottomLeft: Side(content: '└'),
bottomRight: Side(content: '┘'),
);