Add VSCode themes plugin with 30+ popular themes (#336)

Co-authored-by: Claude <noreply@anthropic.com>

plugins/themes-yaak/src/themes/high-contrast.ts

@@ -0,0 +1,46 @@
+import type { Theme } from '@yaakapp/api';
+
+export const highContrast: Theme = {
+  id: 'high-contrast',
+  label: 'High Contrast Light',
+  dark: false,
+  base: {
+    surface: 'white',
+    surfaceHighlight: 'hsl(218,24%,93%)',
+    text: 'black',
+    textSubtle: 'hsl(217,24%,40%)',
+    textSubtlest: 'hsl(217,24%,40%)',
+    border: 'hsl(217,22%,50%)',
+    borderSubtle: 'hsl(217,22%,60%)',
+    primary: 'hsl(267,67%,47%)',
+    secondary: 'hsl(218,18%,53%)',
+    info: 'hsl(206,100%,36%)',
+    success: 'hsl(155,100%,26%)',
+    notice: 'hsl(45,100%,31%)',
+    warning: 'hsl(30,99%,34%)',
+    danger: 'hsl(334,100%,35%)',
+  },
+};
+
+export const highContrastDark: Theme = {
+  id: 'high-contrast-dark',
+  label: 'High Contrast Dark',
+  dark: true,
+  base: {
+    surface: 'hsl(0,0%,0%)',
+    surfaceHighlight: 'hsl(0,0%,20%)',
+    text: 'hsl(0,0%,100%)',
+    textSubtle: 'hsl(0,0%,90%)',
+    textSubtlest: 'hsl(0,0%,80%)',
+    selection: 'hsl(276,100%,30%)',
+    surfaceActive: 'hsl(276,100%,30%)',
+    border: 'hsl(0,0%,60%)',
+    primary: 'hsl(266,100%,85%)',
+    secondary: 'hsl(242,20%,72%)',
+    info: 'hsl(208,100%,83%)',
+    success: 'hsl(150,100%,63%)',
+    notice: 'hsl(49,100%,77%)',
+    warning: 'hsl(28,100%,73%)',
+    danger: 'hsl(343,100%,79%)',
+  },
+};