Update @tsconfig/ember & fix tests

ember-basic-dropdown/package.json

@@ -92,7 +92,7 @@
     "@glimmer/component": "^1.1.2",
     "@glimmer/tracking": "^1.1.2",
     "@rollup/plugin-babel": "^6.0.4",
-    "@tsconfig/ember": "^2.0.0",
+    "@tsconfig/ember": "^3.0.3",
     "@types/ember": "^4.0.10",
     "@types/ember__application": "^4.0.10",
     "@types/ember__array": "^4.0.9",

ember-basic-dropdown/src/components/basic-dropdown-content.ts

@@ -11,7 +11,7 @@ import {
 import hasMoved from '../utils/has-moved.ts';
 import { isTesting } from '@embroider/macros';
 import { modifier } from 'ember-modifier';
-import { Dropdown } from './basic-dropdown.ts';
+import type { Dropdown } from './basic-dropdown.ts';
 
 export interface BasicDropdownContentSignature {
   Element: Element;

ember-basic-dropdown/src/components/basic-dropdown-trigger.ts

@@ -1,6 +1,6 @@
 import Component from '@glimmer/component';
 import { action } from '@ember/object';
-import { Dropdown } from './basic-dropdown';
+import type { Dropdown } from './basic-dropdown';
 
 interface BasicDropdownSignature {
   Element: Element;

ember-basic-dropdown/src/components/basic-dropdown.ts

@@ -2,15 +2,16 @@ import Component from '@glimmer/component';
 import { tracked } from '@glimmer/tracking';
 import { action } from '@ember/object';
 import { guidFor } from '@ember/object/internals';
-import calculatePosition, {
+import calculatePosition from '../utils/calculate-position.ts';
+import type {
   CalculatePosition,
   CalculatePositionResult,
 } from '../utils/calculate-position.ts';
 import { schedule } from '@ember/runloop';
 import { macroCondition, isTesting } from '@embroider/macros';
 import config from 'ember-get-config';
 import type Owner from '@ember/owner';
-import { ComponentLike } from '@glint/template';
+import type { ComponentLike } from '@glint/template';
 
 export interface DropdownActions {
   toggle: (e?: Event) => void;

ember-basic-dropdown/src/modifiers/basic-dropdown-trigger.ts

@@ -1,9 +1,10 @@
-import Modifier, { ArgsFor, PositionalArgs, NamedArgs } from 'ember-modifier';
+import Modifier from 'ember-modifier';
+import type { ArgsFor, PositionalArgs, NamedArgs } from 'ember-modifier';
 import { assert } from '@ember/debug';
 import { action } from '@ember/object';
 import { isDestroyed, registerDestructor } from '@ember/destroyable';
 import hasMoved from '../utils/has-moved.ts';
-import { Dropdown } from '../components/basic-dropdown';
+import type { Dropdown } from '../components/basic-dropdown';
 import type Owner from '@ember/owner';
 
 interface Signature {