Fixing typing issues per PR requests

Signed-off-by: Joshua Jung <joshua.p.jung@gmail.com>

plugins/search/src/components/SearchModal/SearchModal.tsx

@@ -230,7 +230,7 @@ export const SearchModal = (props: SearchModalProps) => {
             })) ?? (
             <Modal
               toggleModal={toggleModal}
-              resultItemComponents={resultItemComponents || []}
+              resultItemComponents={resultItemComponents}
             />
           )}
         </SearchContextProvider>

plugins/search/src/components/SearchType/SearchType.Tabs.tsx

@@ -19,8 +19,9 @@ import { useSearch } from '@backstage/plugin-search-react';
 import Tab from '@material-ui/core/Tab';
 import Tabs from '@material-ui/core/Tabs';
 import { makeStyles } from '@material-ui/core/styles';
+import { Theme } from '@material-ui/core/styles';
 
-const useStyles = makeStyles((theme: any) => ({
+const useStyles = makeStyles((theme: Theme) => ({
   tabs: {
     borderBottom: `1px solid ${theme.palette.textVerySubtle}`,
   },