Fix: The chunk method of the knowledge base cannot be saved. (#13813)

### What problem does this PR solve?

Fix: The chunk method of the knowledge base cannot be saved.

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

web/src/components/ui/loading-button.tsx

@@ -1,75 +0,0 @@
-// https://github.com/hsuanyi-chou/shadcn-ui-expansions/blob/main/components/ui/loading-button.tsx
-
-import { cn } from '@/lib/utils';
-import { Slot, Slottable } from '@radix-ui/react-slot';
-import { cva, type VariantProps } from 'class-variance-authority';
-import { Loader2 } from 'lucide-react';
-import * as React from 'react';
-
-const buttonVariants = cva(
-  'inline-flex items-center justify-center rounded-md text-sm font-medium ring-offset-background transition-colors focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:pointer-events-none disabled:opacity-50',
-  {
-    variants: {
-      variant: {
-        default: 'bg-primary text-primary-foreground hover:bg-primary/90',
-        destructive:
-          'bg-destructive text-destructive-foreground hover:bg-destructive/90',
-        outline:
-          'border border-input bg-background hover:bg-accent hover:text-accent-foreground',
-        secondary:
-          'bg-secondary text-secondary-foreground hover:bg-secondary/80',
-        ghost: 'hover:bg-accent hover:text-accent-foreground',
-        link: 'text-primary underline-offset-4 hover:underline',
-      },
-      size: {
-        default: 'h-10 px-4 py-2',
-        sm: 'h-9 rounded-md px-3',
-        lg: 'h-11 rounded-md px-8',
-        icon: 'h-10 w-10',
-      },
-    },
-    defaultVariants: {
-      variant: 'default',
-      size: 'default',
-    },
-  },
-);
-
-export interface ButtonProps
-  extends React.ButtonHTMLAttributes<HTMLButtonElement>,
-    VariantProps<typeof buttonVariants> {
-  asChild?: boolean;
-  loading?: boolean;
-}
-
-const LoadingButton = React.forwardRef<HTMLButtonElement, ButtonProps>(
-  (
-    {
-      className,
-      loading = false,
-      children,
-      disabled,
-      variant,
-      size,
-      asChild = false,
-      ...props
-    },
-    ref,
-  ) => {
-    const Comp = asChild ? Slot : 'button';
-    return (
-      <Comp
-        className={cn(buttonVariants({ variant, size, className }))}
-        ref={ref}
-        disabled={loading || disabled}
-        {...props}
-      >
-        {loading && <Loader2 className="mr-2 h-5 w-5 animate-spin" />}
-        <Slottable>{children}</Slottable>
-      </Comp>
-    );
-  },
-);
-LoadingButton.displayName = 'LoadingButton';
-
-export { LoadingButton, buttonVariants };