docs: move dark-mode accent to colors.light so it actually drives emphasis

Mintlify's colors.dark only controls the CTA button — emphasis in dark mode
(links, sidebar active, headings) comes from colors.light. Swap so light
holds the brand yellow (#FDCD01) and dark reverts to the darker orange.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: Aditya Thiruvengadam

docs/docs.json

@@ -4,8 +4,8 @@
   "name": "Klarity MCP",
   "colors": {
     "primary": "#FF6C14",
-    "light": "#FF8540",
-    "dark": "#FDCD01"
+    "light": "#FDCD01",
+    "dark": "#CC5610"
   },
   "favicon": "/favicon.png",
   "fonts": {