chore: [DSYS-616] replace single Input instance and update @deprecated JSDoc

ui/components/component-library/input/input.tsx

@@ -16,6 +16,7 @@ import { InputProps, InputType, InputComponent } from './input.types';
  * Please use the Input component from @metamask/design-system-react instead.
  * @see {@link https://metamask.github.io/metamask-design-system/?path=/docs/react-components-input--docs | Storybook Documentation}
  * @see {@link https://github.com/MetaMask/metamask-design-system/tree/main/packages/design-system-react/src/components/Input | Component Source}
+ * @see {@link https://github.com/MetaMask/metamask-design-system/blob/main/packages/design-system-react/MIGRATION.md#input-component | Migration Guide}
  */
 export const Input: InputComponent = React.forwardRef(
   // TODO: Fix in https://github.com/MetaMask/metamask-extension/issues/31860

ui/components/multichain/dropdown-editor/dropdown-editor.tsx

@@ -1,13 +1,13 @@
 import React, { ReactNode, useEffect, useRef, useState } from 'react';
 import classnames from 'clsx';
+import { Input } from '@metamask/design-system-react';
 import {
   Box,
   ButtonIcon,
   ButtonIconSize,
   Icon,
   IconName,
   IconSize,
-  Input,
   Label,
   Popover,
   PopoverPosition,
@@ -203,12 +203,10 @@ export const DropdownEditor = <Item,>({
         renderItem(selectedItem, false)
       ) : (
         <Input
-          className="dropdown-editor__item-placeholder"
+          className="dropdown-editor__item-placeholder py-3"
           placeholder={placeholder}
-          readOnly
+          isReadonly
           tabIndex={-1}
-          paddingTop={3}
-          paddingBottom={3}
         />
       )}
       <ButtonIcon

ui/components/multichain/network-list-menu/__snapshots__/network-list-menu.test.tsx.snap

@@ -1075,13 +1075,10 @@ exports[`NetworkListMenu should match snapshot when adding a network 1`] = `
                   class="mm-box dropdown-editor__item-dropdown mm-box--padding-right-4 mm-box--padding-left-4 mm-box--display-flex mm-box--justify-content-space-between mm-box--align-items-center mm-box--rounded-lg mm-box--border-color-border-default mm-box--border-width-1 box--border-style-solid"
                 >
                   <input
-                    autocomplete="off"
-                    class="mm-box mm-text mm-input dropdown-editor__item-placeholder mm-text--body-md mm-box--margin-0 mm-box--padding-0 mm-box--padding-top-3 mm-box--padding-bottom-3 mm-box--color-text-default mm-box--background-color-transparent mm-box--border-style-none"
+                    class="w-full rounded border bg-default text-default outline-none transition-colors border-transparent focus:border-primary-default focus:outline-none placeholder:text-alternative text-s-body-md leading-s-body-md tracking-s-body-md md:text-l-body-md md:leading-l-body-md md:tracking-l-body-md font-regular dropdown-editor__item-placeholder py-3"
                     placeholder="Add a URL"
                     readonly=""
                     tabindex="-1"
-                    type="text"
-                    value=""
                   />
                   <button
                     aria-label="Default RPC URL"
@@ -1157,13 +1154,10 @@ exports[`NetworkListMenu should match snapshot when adding a network 1`] = `
                   class="mm-box dropdown-editor__item-dropdown mm-box--padding-right-4 mm-box--padding-left-4 mm-box--display-flex mm-box--justify-content-space-between mm-box--align-items-center mm-box--rounded-lg mm-box--border-color-border-default mm-box--border-width-1 box--border-style-solid"
                 >
                   <input
-                    autocomplete="off"
-                    class="mm-box mm-text mm-input dropdown-editor__item-placeholder mm-text--body-md mm-box--margin-0 mm-box--padding-0 mm-box--padding-top-3 mm-box--padding-bottom-3 mm-box--color-text-default mm-box--background-color-transparent mm-box--border-style-none"
+                    class="w-full rounded border bg-default text-default outline-none transition-colors border-transparent focus:border-primary-default focus:outline-none placeholder:text-alternative text-s-body-md leading-s-body-md tracking-s-body-md md:text-l-body-md md:leading-l-body-md md:tracking-l-body-md font-regular dropdown-editor__item-placeholder py-3"
                     placeholder="Add a URL"
                     readonly=""
                     tabindex="-1"
-                    type="text"
-                    value=""
                   />
                   <button
                     aria-label="Block explorer URL"