chore(ui): remove duplicate titles from theme page

Author: x0sina

dashboard/src/pages/_dashboard.settings.theme.tsx

@@ -103,15 +103,10 @@ export default function ThemeSettings() {
   }
 
   return (
-    <div className="mt-6 flex flex-col gap-6 pb-8">
-      {/* Header Section */}
-      <div className="space-y-1 px-4">
-        <h2 className="text-2xl font-semibold tracking-tight">{t('theme.title')}</h2>
-        <p className="text-sm text-muted-foreground">{t('theme.description')}</p>
-      </div>
+    <div className="mt-4 flex flex-col gap-6 pb-8">
 
       {/* Theme Mode Section */}
-      <Card className="border-0 shadow-sm">
+      <Card className="border-0 shadow-sm bg-transparent">
         <CardHeader className="pb-4">
           <div className="flex items-center gap-2">
             <div className="flex h-5 w-5 items-center justify-center rounded bg-primary/20">
@@ -174,7 +169,7 @@ export default function ThemeSettings() {
       </Card>
 
       {/* Color Theme Section */}
-      <Card className="border-0 shadow-sm">
+      <Card className="border-0 shadow-sm bg-transparent">
         <CardHeader className="pb-4">
           <div className="flex items-center gap-2">
             <div className="flex h-5 w-5 items-center justify-center rounded bg-primary/20">
@@ -229,7 +224,7 @@ export default function ThemeSettings() {
       </Card>
 
       {/* Border Radius Section */}
-      <Card className="border-0 shadow-sm">
+      <Card className="border-0 shadow-sm bg-transparent">
         <CardHeader className="pb-4">
           <div className="flex items-center gap-2">
             <div className="flex h-5 w-5 items-center justify-center rounded bg-primary/20">
@@ -275,7 +270,7 @@ export default function ThemeSettings() {
       </Card>
 
       {/* Preview Section */}
-      <Card className="border-0 shadow-sm">
+      <Card className="border-0 shadow-sm bg-transparent">
         <CardHeader className="pb-4">
           <div className="flex items-center gap-2">
             <div className="flex h-5 w-5 items-center justify-center rounded bg-primary/20">
@@ -334,7 +329,7 @@ export default function ThemeSettings() {
       </Card>
 
       {/* Reset Section */}
-      <Card className="border-0 shadow-sm">
+      <Card className="border-0 shadow-sm bg-transparent">
         <CardContent className="pt-6">
           <div className="flex items-center justify-between">
             <div>