Fixed WelcomeTitle regression

Signed-off-by: Andre Wanlin <67169551+awanlin@users.noreply.github.com>

.changeset/late-rice-crash.md

@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-home': patch
+---
+
+Fixed regresstion that caused the `WelcomeTitle` to not be the right size when passed to the `title` property of the `<Header>` component

plugins/home/src/homePageComponents/WelcomeTitle/WelcomeTitle.stories.tsx

@@ -0,0 +1,29 @@
+/*
+ * Copyright 2023 The Backstage Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { Header } from '@backstage/core-components';
+import { wrapInTestApp } from '@backstage/test-utils';
+import React, { ComponentType } from 'react';
+import { WelcomeTitle } from './WelcomeTitle';
+
+export default {
+  title: 'Plugins/Home/Components/WelcomeTitle',
+  decorators: [(Story: ComponentType<{}>) => wrapInTestApp(<Story />)],
+};
+
+export const Default = () => {
+  return <Header title={<WelcomeTitle />} pageTitleOverride="Home" />;
+};

plugins/home/src/homePageComponents/WelcomeTitle/WelcomeTitle.tsx

@@ -19,7 +19,6 @@ import {
   useApi,
 } from '@backstage/core-plugin-api';
 import { Tooltip } from '@material-ui/core';
-import Typography from '@material-ui/core/Typography';
 import React, { useEffect, useMemo } from 'react';
 import useAsync from 'react-use/lib/useAsync';
 import { getTimeBasedGreeting } from './timeUtil';
@@ -44,9 +43,9 @@ export const WelcomeTitle = () => {
 
   return (
     <Tooltip title={greeting.language}>
-      <Typography component="span">{`${greeting.greeting}${
+      <>{`${greeting.greeting}${
         profile?.displayName ? `, ${profile?.displayName}` : ''
-      }!`}</Typography>
+      }!`}</>
     </Tooltip>
   );
 };