Add missing component registration

Author: mkszepp

test-app/app/components/shadow-root.ts

@@ -4,7 +4,7 @@ import { getOwner } from '@ember/owner';
 // @ts-expect-error Public property 'isFastBoot' of exported class
 const isFastBoot = typeof FastBoot !== 'undefined';
 
-export default class ShadowRootComponent extends Component<{
+export default class ShadowRoot extends Component<{
   Element: HTMLDivElement;
   Blocks: { default: [] };
 }> {
@@ -39,3 +39,9 @@ export default class ShadowRootComponent extends Component<{
     return [...document.head.querySelectorAll('link')].map((link) => link.href);
   }
 }
+
+declare module '@glint/environment-ember-loose/registry' {
+  export default interface Registry {
+    ShadowRoot: typeof ShadowRoot;
+  }
+}

test-app/app/components/shadow.ts

@@ -2,7 +2,7 @@ import Component from '@glimmer/component';
 import { tracked } from '@glimmer/tracking';
 import { modifier } from 'ember-modifier';
 
-export default class ShadowComponent extends Component<{
+export default class Shadow extends Component<{
   Element: HTMLDivElement;
   Blocks: { default: [] };
 }> {
@@ -28,6 +28,6 @@ export default class ShadowComponent extends Component<{
 
 declare module '@glint/environment-ember-loose/registry' {
   export default interface Registry {
-    Shadow: typeof ShadowComponent;
+    Shadow: typeof Shadow;
   }
 }