fix(webui): add Noto Sans to global font-family stack for Cyrillic text (#8205)

PR #8015 added 'Noto Sans' to the Google Fonts link and CJK fallback list,
but the font was placed at the end of $cjk-sans-fallback where browsers
never reach it for Cyrillic text. The global $body-font-family also lacked
'Outfit' entirely, causing Vuetify to use CJK fonts as the primary face.

Changes:
- Remove 'Noto Sans' from the end of $cjk-sans-fallback (it is not a CJK font)
- Add 'Outfit' and 'Noto Sans' to $body-font-family before CJK fallbacks
- Update .Outfit class in _container.scss to match the new stack

This ensures:
- Latin text → Outfit
- Cyrillic text → Noto Sans (loaded by vite-plugin-webfont-dl)
- CJK text → Noto Sans SC / PingFang SC etc.

Fixes follow-up to #8015.

dashboard/src/scss/_variables.scss

@@ -9,7 +9,7 @@ $color-pack: false;
 // Global font size and border radius
 $font-size-root: 1rem;
 $border-radius-root: 8px;
-$cjk-sans-fallback: 'PingFang SC', 'Hiragino Sans GB', 'Noto Sans CJK SC', 'Microsoft YaHei', 'Noto Sans SC', 'Noto Sans' !default;
+$cjk-sans-fallback: 'PingFang SC', 'Hiragino Sans GB', 'Noto Sans CJK SC', 'Microsoft YaHei', 'Noto Sans SC' !default;
 $cjk-mono-fallback: 'PingFang SC', 'PingFang TC', 'Hiragino Sans GB', 'Noto Sans CJK SC', 'Microsoft YaHei' !default;
 $code-text-color: #111827 !default;
 
@@ -19,7 +19,7 @@ $code-text-color: #111827 !default;
   --astrbot-code-color: #{$code-text-color};
 }
 
-$body-font-family: $cjk-sans-fallback, sans-serif !default;
+$body-font-family: 'Outfit', 'Noto Sans', $cjk-sans-fallback, sans-serif !default;
 $heading-font-family: $body-font-family !default;
 $btn-font-weight: 400 !default;
 $btn-letter-spacing: 0 !default;

dashboard/src/scss/layout/_container.scss

@@ -80,7 +80,7 @@ $sizes: (
 
 body {
   .Outfit {
-    font-family: 'Outfit', $cjk-sans-fallback, sans-serif !important;
+    font-family: $body-font-family !important;
   }
 }