Update eslint config

.eslintrc.json

@@ -1,8 +1,7 @@
 {
-  "extends": "brightspace/open-wc-testing-config",
-  "parser": "@babel/eslint-parser",
-  "parserOptions": {
-    "sourceType": "module",
-    "requireConfigFile": false
-  }
+  "extends": "brightspace/lit-config",
+  "overrides": [{
+    "files": "test/**",
+    "extends": "brightspace/testing-config"
+  }]
 }

attribute-picker.js

@@ -3,8 +3,8 @@ import '@brightspace-ui/core/components/tooltip/tooltip.js';
 import './multi-select-list.js';
 import './multi-select-list-item.js';
 import { css, html, LitElement } from 'lit';
-import { classMap } from 'lit-html/directives/class-map.js';
-import { ifDefined } from 'lit-html/directives/if-defined.js';
+import { classMap } from 'lit/directives/class-map.js';
+import { ifDefined } from 'lit/directives/if-defined.js';
 import { inputStyles } from '@brightspace-ui/core/components/inputs/input-styles.js';
 import { Localizer } from './localization.js';
 import { repeat } from 'lit/directives/repeat.js';