Adjusted the dialog API types to have more sensible defaults

Signed-off-by: Fredrik Adelöw <freben@gmail.com>

plugins/app/src/apis/DefaultDialogApi.ts

@@ -19,7 +19,7 @@ import { DialogApi, DialogApiDialog } from '@backstage/frontend-plugin-api';
 export type OnShowDialog = (options: {
   component: (props: { dialog: DialogApiDialog<any> }) => React.JSX.Element;
   modal: boolean;
-}) => DialogApiDialog;
+}) => DialogApiDialog<unknown>;
 
 /**
  * Default implementation for the {@link DialogApi}.
@@ -28,7 +28,7 @@ export type OnShowDialog = (options: {
 export class DefaultDialogApi implements DialogApi {
   #onShow?: OnShowDialog;
 
-  show<TResult = {}>(
+  show<TResult = void>(
     elementOrComponent:
       | JSX.Element
       | ((props: {
@@ -47,7 +47,7 @@ export class DefaultDialogApi implements DialogApi {
     }) as DialogApiDialog<TResult | undefined>;
   }
 
-  showModal<TResult = {}>(
+  showModal<TResult = void>(
     elementOrComponent:
       | JSX.Element
       | ((props: { dialog: DialogApiDialog<TResult> }) => JSX.Element),

plugins/app/src/extensions/DialogDisplay.tsx

@@ -31,7 +31,7 @@ function getDialogId() {
   return dialogId.toString(36);
 }
 
-type DialogState = DialogApiDialog & {
+type DialogState = DialogApiDialog<unknown> & {
   id: string;
   modal: boolean;
 };