refactor: clean up unused ThemeProvider code and CSS variables

apps/landing/src/app/_components/providers.tsx

@@ -3,21 +3,9 @@
 import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
 import type { ThemeProviderProps } from 'next-themes';
 import { ReactNode } from 'react';
-// import { ThemeProvider as NextThemesProvider } from 'next-themes';
 
 export function Providers({ children }: ThemeProviderProps) {
-  return (
+  return <QueryProvider>{children}</QueryProvider>;
-    <QueryProvider>
-      {/* <ThemeProvider
-        attribute="class"
-        defaultTheme="light"
-        enableSystem
-        disableTransitionOnChange
-      > */}
-      {children}
-      {/* </ThemeProvider> */}
-    </QueryProvider>
-  );
 }
 
 export const queryClient = new QueryClient();
@@ -27,7 +15,3 @@ function QueryProvider({ children }: { children: ReactNode }) {
     <QueryClientProvider client={queryClient}>{children}</QueryClientProvider>
   );
 }
-
-// function ThemeProvider({ children, ...props }: ThemeProviderProps) {
-//   return <NextThemesProvider {...props}>{children}</NextThemesProvider>;
-// }

libs/shadcn-ui/src/index.css

@@ -140,49 +140,6 @@
   --sidebar-ring: oklch(0.623 0.214 259.815);
 }
 
-/* .dark {
-  --background: oklch(0.141 0.005 285.823);
-  --foreground: oklch(0.985 0 0);
-  --card: oklch(0.21 0.006 285.885);
-  --card-foreground: oklch(0.985 0 0);
-  --popover: oklch(0.21 0.006 285.885);
-  --popover-foreground: oklch(0.985 0 0);
-  --primary: oklch(0.546 0.245 262.881);
-  --primary-foreground: oklch(0.379 0.146 265.522);
-  --secondary: oklch(0.274 0.006 286.033);
-  --secondary-foreground: oklch(0.985 0 0);
-  --muted: oklch(0.274 0.006 286.033);
-  --muted-foreground: oklch(0.705 0.015 286.067);
-  --accent: oklch(0.274 0.006 286.033);
-  --accent-foreground: oklch(0.985 0 0);
-  --destructive: oklch(0.704 0.191 22.216);
-  --border: oklch(1 0 0 / 10%);
-  --input: oklch(1 0 0 / 15%);
-  --ring: oklch(0.488 0.243 264.376);
-  --chart-1: oklch(0.488 0.243 264.376);
-  --chart-2: oklch(0.696 0.17 162.48);
-  --chart-3: oklch(0.769 0.188 70.08);
-  --chart-4: oklch(0.627 0.265 303.9);
-  --chart-5: oklch(0.645 0.246 16.439);
-  --sidebar: oklch(0.21 0.006 285.885);
-  --sidebar-foreground: oklch(0.985 0 0);
-  --sidebar-primary: oklch(0.546 0.245 262.881);
-  --sidebar-primary-foreground: oklch(0.379 0.146 265.522);
-  --sidebar-accent: oklch(0.274 0.006 286.033);
-  --sidebar-accent-foreground: oklch(0.985 0 0);
-  --sidebar-border: oklch(1 0 0 / 10%);
-  --sidebar-ring: oklch(0.488 0.243 264.376);
-} */
-
-@layer base {
-  * {
-    @apply border-border outline-ring/50;
-  }
-  body {
-    @apply bg-background text-foreground;
-  }
-}
-
 /* https://github.com/tailwindlabs/tailwindcss/issues/13129 */
 .container {
   margin-left: auto;