Ensure SearchBar are displayed with max width.

features/roomdetails/impl/src/main/kotlin/io/element/android/features/roomdetails/impl/rolesandpermissions/changeroles/ChangeRolesView.kt

@@ -129,7 +129,9 @@ fun ChangeRolesView(
             ) {
                 val lazyListState = rememberLazyListState()
                 SearchBar(
-                    modifier = Modifier.padding(bottom = 16.dp),
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .padding(bottom = 16.dp),
                     placeHolderTitle = stringResource(CommonStrings.common_search_for_someone),
                     query = state.query.orEmpty(),
                     onQueryChange = { state.eventSink(ChangeRolesEvent.QueryChanged(it)) },

libraries/roomselect/impl/src/main/kotlin/io/element/android/libraries/roomselect/impl/RoomSelectView.kt

@@ -127,6 +127,7 @@ fun RoomSelectView(
                 .consumeWindowInsets(paddingValues)
         ) {
             SearchBar(
+                modifier = Modifier.fillMaxWidth(),
                 placeHolderTitle = stringResource(CommonStrings.action_search),
                 query = state.query,
                 onQueryChange = { state.eventSink(RoomSelectEvents.UpdateQuery(it)) },