chore: remove duplicate font-family entries

Author: brc-dd

Diff for: src/client/theme-default/styles/vars.css

@@ -263,7 +263,6 @@
 :root {
   --vp-font-family-base: 'Chinese Quotes', Inter, ui-sans-serif, system-ui,
     sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol',
-    'Noto Color Emoji', 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol',
     'Noto Color Emoji';
   --vp-font-family-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
     'Liberation Mono', 'Courier New', monospace;