message: update SideNav snapshot
diff: @@ -49,10 +49,10 @@ exports[`SideNav SideNav.Link renders consistently 1`] = `
  }
  .c1.variant-normal > .c0 {
  - color: #586069;
  + color: #24292e;
  padding: 16px;
  border: 0;
  - border-top: 1px solid #e1e4e8;
  + border-top: 1px solid #eaecef;
  }
  .c1.variant-normal > .c0:first-child {
  @@ -72,7 +72,6 @@ exports[`SideNav SideNav.Link renders consistently 1`] = `
  .c1.variant-normal > .c0:hover,
  .c1.variant-normal > .c0:focus {
  - color: #24292e;
  -webkit-text-decoration: none;
  text-decoration: none;
  background-color: #f6f8fa;
  @@ -81,8 +80,7 @@ exports[`SideNav SideNav.Link renders consistently 1`] = `
  .c1.variant-normal > .c0[aria-current='page'],
  .c1.variant-normal > .c0[aria-selected='true'] {
  - font-weight: 500;
  - color: #24292e;
  + background-color: #ffffff;
  }
  .c1.variant-normal > .c0[aria-current='page']::before,
  @@ -123,7 +121,7 @@ exports[`SideNav renders consistently 1`] = `
  }
  .c1 {
  - background-color: #ffffff;
  + background-color: #fafbfc;
  }
  <nav
  