message: refactor(panel): update dark brand color
diff: &.darkMode {
  background-color: #222;
  color: #ddd;
  - --color-brand: #218c74;
  + --color-brand: #1e947e;
  --color-background: #222;
  --color-rgb-background: 34, 34, 34;
  --color-font: #ddd;
  