feat: excel import (#527)

* refactor: simplify excel import

* chore: add external deepmerge utility

* chore: create import map utilities

* chore: increase size limits on uploads

* style: small presentation tweaks

* feat: resolve times on excel import, refs #508

apps/client/src/features/modals/upload-modal/preview/PreviewExcel.tsx

@@ -0,0 +1,26 @@
+import { OntimeRundown, ProjectData, UserFields } from 'ontime-types';
+
+import PreviewProjectData from './PreviewProjectData';
+import PreviewRundown from './PreviewRundown';
+
+import style from '../../Modal.module.scss';
+
+interface PreviewExcelProps {
+  rundown: OntimeRundown;
+  project: ProjectData;
+  userFields: UserFields;
+}
+
+export default function PreviewExcel(props: PreviewExcelProps) {
+  const { rundown, project, userFields } = props;
+
+  return (
+    <div className={`${style.column}`}>
+      <div className={style.title}>Review Project Data</div>
+      <PreviewProjectData project={project} />
+      <div className={style.vSpacer} />
+      <div className={style.title}>Review Rundown</div>
+      <PreviewRundown rundown={rundown} userFields={userFields} />
+    </div>
+  );
+}