fix(MultiSelect): improve default types

Author: mrholek

docs/content/forms/multi-select.md

@@ -230,9 +230,9 @@ You may also choose from small and large multi selects to match our similarly si
 | `disabled` | boolean | `false` | Toggle the disabled state for the component. |
 | `invalid` | boolean | `false` | Toggle the invalid state for the component. |
 | `multiple` | boolean | `true` | It specifies that multiple options can be selected at once. |
-| `name` | string | `null` | Set the name attribute for the native select element. |
-| `options` | (boolean\|array) | `false` | List of option elements. |
-| `optionsMaxHeight` | (number\|string) | `'auto'` | Sets `max-height` of options list.	 |
+| `name` | string, null | `null` | Set the name attribute for the native select element. |
+| `options` | boolean, array | `false` | List of option elements. |
+| `optionsMaxHeight` | number, string | `'auto'` | Sets `max-height` of options list.	 |
 | `optionsStyle` | string | `'checkbox'` | Sets option style. |
 | `placeholder` | string | `'Select...'` | Specifies a short hint that is visible in the input. |
 | `search` | boolean | `false` | Enables search input element.	 |

js/dist/multi-select.js

@@ -9,7 +9,6 @@ import * as Popper from '@popperjs/core'
 import BaseComponent from './base-component.js'
 import Data from './dom/data.js'
 import EventHandler from './dom/event-handler.js'
-import Manipulator from './dom/manipulator.js'
 import SelectorEngine from './dom/selector-engine.js'
 import { defineJQueryPlugin, isRTL } from './util/index.js'
 
@@ -95,7 +94,7 @@ const DefaultType = {
   disabled: 'boolean',
   invalid: 'boolean',
   multiple: 'boolean',
-  name: 'string',
+  name: '(string|null)',
   options: '(boolean|array)',
   optionsMaxHeight: '(number|string)',
   optionsStyle: 'string',
@@ -312,17 +311,6 @@ class MultiSelect extends BaseComponent {
     })
   }
 
-  _getConfig(config) {
-    config = {
-      ...Default,
-      ...this._element.disabled && { disabled: true },
-      ...Manipulator.getDataAttributes(this._element),
-      ...(typeof config === 'object' ? config : {})
-    }
-
-    return config
-  }
-
   _getClassNames() {
     return this._element.classList.value.split(' ')
   }