message: feat: add table border
diff: @@ -40,7 +40,7 @@ const HeaderRight = styled.header`
  const MainContent = styled.main`
  flex-grow: 1;
  overflow: auto;
  - min-height: 2em;
  + border: 1px solid #b3b3b3aa;
  `
  const Footer = styled.footer`
  