regression: go back instead of closing app on rooms search (#6750)

Author: Rohit3523

.maestro/tests/room/search.yaml

@@ -0,0 +1,41 @@
+appId: chat.rocket.reactnative
+name: Search
+onFlowStart:
+  - runFlow: '../../helpers/setup.yaml'
+tags:
+  - test-13
+  - android-only
+
+---
+- evalScript: ${output.user = output.utils.createUser()}
+
+- runFlow:
+    file: '../../helpers/login-with-deeplink.yaml'
+    env:
+      USERNAME: ${output.user.username}
+      PASSWORD: ${output.user.password}
+
+- extendedWaitUntil:
+    visible:
+      id: 'rooms-list-view-search'
+    timeout: 60000
+- tapOn:
+    id: rooms-list-view-search
+- extendedWaitUntil:
+    visible:
+      id: 'rooms-list-view'
+    timeout: 60000
+- extendedWaitUntil:
+    visible:
+      id: 'rooms-list-view-search-input'
+    timeout: 60000
+- pressKey: Back
+- pressKey: Back
+- extendedWaitUntil:
+    visible:
+      id: 'rooms-list-view'
+    timeout: 60000
+- extendedWaitUntil:
+    notVisible:
+      id: 'rooms-list-view-search-input'
+    timeout: 60000

app/views/RoomsListView/index.tsx

@@ -1,6 +1,6 @@
 import { useNavigation } from '@react-navigation/native';
-import React, { memo, useContext } from 'react';
-import { FlatList, RefreshControl } from 'react-native';
+import React, { memo, useContext, useEffect } from 'react';
+import { BackHandler, FlatList, RefreshControl } from 'react-native';
 import { useSafeAreaFrame } from 'react-native-safe-area-context';
 import { shallowEqual } from 'react-redux';
 
@@ -51,6 +51,18 @@ const RoomsListView = memo(function RoomsListView() {
 	const { refreshing, onRefresh } = useRefresh({ searching });
 	const supportedVersionsStatus = useAppSelector(state => state.supportedVersions.status);
 
+	useEffect(() => {
+		const subscription = BackHandler.addEventListener('hardwareBackPress', () => {
+			if (searchEnabled) {
+				stopSearch();
+				navigation.goBack();
+				return true;
+			}
+			return false;
+		});
+		return () => subscription.remove();
+	}, [searchEnabled]);
+
 	const onPressItem = (item = {} as IRoomItem) => {
 		if (!navigation.isFocused()) {
 			return;