refactor: improve empty state for project info

apps/client/src/common/components/state/EmptyPage.module.scss

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+@use '../../../theme/viewerDefs' as *;
+
+/* share the same style as a page layout */
+.page {
+  margin: 0;
+  box-sizing: border-box; /* reset */
+  overflow: hidden;
+  width: 100%; /* restrict the page width to viewport */
+  height: 100vh;
+
+  font-family: var(--font-family-override, $viewer-font-family);
+  background: var(--background-color-override, $viewer-background-color);
+  color: var(--color-override, $viewer-color);
+  padding: min(2vh, 16px) clamp(16px, 10vw, 64px);
+
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  padding-top: 5rem;
+}

apps/client/src/common/components/state/EmptyPage.tsx

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+import { CSSProperties } from 'react';
+
+import Empty from './Empty';
+
+import style from './EmptyPage.module.scss';
+
+interface EmptyPageProps {
+  text?: string;
+  style?: CSSProperties;
+}
+
+export default function EmptyPage(props: EmptyPageProps) {
+  const { text, ...rest } = props;
+
+  return (
+    <div className={style.page}>
+      <Empty text={text} {...rest} />
+    </div>
+  );
+}