refactor: standardize quotation marks across all files and improve code consistency

components/theme-provider.tsx

@@ -1,11 +1,11 @@
-'use client'
+"use client";
 
-import * as React from 'react'
+import * as React from "react";
 import {
   ThemeProvider as NextThemesProvider,
   type ThemeProviderProps,
-} from 'next-themes'
+} from "next-themes";
 
 export function ThemeProvider({ children, ...props }: ThemeProviderProps) {
-  return <NextThemesProvider {...props}>{children}</NextThemesProvider>
+  return <NextThemesProvider {...props}>{children}</NextThemesProvider>;
 }