chore: add example

example/components/design/Button.tsx

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+import classNames from 'clsx'
+
+export interface ButtonProps extends React.ComponentPropsWithoutRef<'button'> {}
+
+export const Button: React.FC<ButtonProps> = (props) => {
+  const { children, className, ...rest } = props
+
+  return (
+    <button
+      className={classNames(
+        'py-2 px-6 font-paragraph rounded-lg bg-transparent border  hover:text-white dark:hover:text-black fill-current stroke-current transform transition-colors duration-300 ease-in-out focus:outline-none focus:text-white dark:focus:text-black border-green-800 dark:border-green-400 text-green-800 dark:text-green-400 hover:bg-green-800 focus:bg-green-800 dark:focus:bg-green-400 dark:hover:bg-green-400',
+        className
+      )}
+      {...rest}
+    >
+      {children}
+    </button>
+  )
+}

example/components/design/FormState.tsx

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+import classNames from 'clsx'
+import useTranslation from 'next-translate/useTranslation'
+import type { FetchState as FormStateType } from 'react-component-form'
+
+import { Loader } from './Loader'
+
+export interface FormStateProps extends React.ComponentPropsWithoutRef<'div'> {
+  state: FormStateType
+  message?: string
+  id?: string
+}
+
+export const FormState: React.FC<FormStateProps> = (props) => {
+  const { state, message, id, ...rest } = props
+  const { t } = useTranslation()
+
+  if (state === 'loading') {
+    return (
+      <div data-cy='loader' className='mt-8 flex justify-center'>
+        <Loader />
+      </div>
+    )
+  }
+
+  if (state === 'idle' || message == null) {
+    return null
+  }
+
+  return (
+    <>
+      <div
+        {...rest}
+        className={classNames(
+          props.className,
+          'mt-6 flex max-w-xl items-center text-center font-medium',
+          {
+            'text-red-800 dark:text-red-400': state === 'error',
+            'text-green-800 dark:text-green-400': state === 'success'
+          }
+        )}
+      >
+        <div className='inline bg-cover font-headline' />
+        <span id={id} className='pl-2'>
+          <b>{t(`common:${state}`)}:</b> {message}
+        </span>
+      </div>
+    </>
+  )
+}

example/components/design/Input.tsx

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+import classNames from 'clsx'
+
+import { FormState } from './FormState'
+
+export interface InputProps extends React.ComponentPropsWithRef<'input'> {
+  label: string
+  error?: string
+  className?: string
+}
+
+export const Input: React.FC<InputProps> = (props) => {
+  const { label, name, className, error, ...rest } = props
+
+  return (
+    <div className='flex flex-col'>
+      <div className={classNames('mt-6 mb-2 flex justify-between', className)}>
+        <label className='pl-1' htmlFor={name}>
+          {label}
+        </label>
+      </div>
+      <div className='relative mt-0'>
+        <input
+          className='h-11 w-full rounded-lg border border-transparent bg-[#f1f1f1] px-3 font-paragraph leading-10 text-[#2a2a2a] caret-green-600 focus:border focus:shadow-green focus:outline-none'
+          {...rest}
+          id={name}
+          name={name}
+        />
+        <FormState state={error == null ? 'idle' : 'error'} message={error} />
+      </div>
+    </div>
+  )
+}

example/components/design/Link.tsx

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+import classNames from 'clsx'
+
+export interface LinkProps extends React.ComponentPropsWithoutRef<'a'> {}
+
+export const Link: React.FC<LinkProps> = (props) => {
+  const { children, className, ...rest } = props
+
+  return (
+    <a
+      className={classNames(
+        'text-green-800 hover:underline dark:text-green-400',
+        className
+      )}
+      {...rest}
+    >
+      {children}
+    </a>
+  )
+}

example/components/design/Loader.tsx

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+export interface LoaderProps {
+  width?: number
+  height?: number
+  className?: string
+}
+
+export const Loader: React.FC<LoaderProps> = (props) => {
+  const { width = 50, height = 50 } = props
+
+  return (
+    <div className={props.className}>
+      <div data-cy='progress-spinner' className='progress-spinner'>
+        <svg className='progress-spinner-svg' viewBox='25 25 50 50'>
+          <circle
+            className='progress-spinner-circle'
+            cx='50'
+            cy='50'
+            r='20'
+            fill='none'
+            strokeWidth='2'
+            strokeMiterlimit='10'
+          />
+        </svg>
+      </div>
+
+      <style jsx>
+        {`
+          .progress-spinner {
+            position: relative;
+            margin: 0 auto;
+            width: ${width}px;
+            height: ${height}px;
+          }
+          .progress-spinner::before {
+            content: '';
+            display: block;
+            padding-top: 100%;
+          }
+          .progress-spinner-svg {
+            animation: progress-spinner-rotate 2s linear infinite;
+            height: 100%;
+            transform-origin: center center;
+            width: 100%;
+            position: absolute;
+            top: 0;
+            bottom: 0;
+            left: 0;
+            right: 0;
+            margin: auto;
+          }
+          .progress-spinner-circle {
+            stroke-dasharray: 89, 200;
+            stroke-dashoffset: 0;
+            stroke: #27b05e;
+            animation: progress-spinner-dash 1.5s ease-in-out infinite;
+            stroke-linecap: round;
+          }
+          @keyframes progress-spinner-rotate {
+            100% {
+              transform: rotate(360deg);
+            }
+          }
+          @keyframes progress-spinner-dash {
+            0% {
+              stroke-dasharray: 1, 200;
+              stroke-dashoffset: 0;
+            }
+            50% {
+              stroke-dasharray: 89, 200;
+              stroke-dashoffset: -35px;
+            }
+            100% {
+              stroke-dasharray: 89, 200;
+              stroke-dashoffset: -124px;
+            }
+          }
+        `}
+      </style>
+    </div>
+  )
+}

example/components/design/TextSpecial.tsx

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+import classNames from 'clsx'
+
+export interface TextSpecialProps
+  extends React.ComponentPropsWithoutRef<'span'> {}
+
+export const TextSpecial: React.FC<TextSpecialProps> = (props) => {
+  const { children, className, ...rest } = props
+
+  return (
+    <span
+      className={classNames('text-green-800 dark:text-green-400', className)}
+      {...rest}
+    >
+      {children}
+    </span>
+  )
+}