Improve search toolbar UX a little bit (#8102)

* Improve search toolbar UX a little.

* Fix wrong stringResource import.

* Revert `FocusRequester` change in favour of #8093.

app/src/main/java/eu/kanade/presentation/browse/SourceSearchScreen.kt

@@ -6,10 +6,12 @@ import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.remember
 import androidx.compose.ui.platform.LocalUriHandler
+import androidx.compose.ui.res.stringResource
 import androidx.paging.compose.collectAsLazyPagingItems
 import eu.kanade.domain.manga.model.Manga
 import eu.kanade.presentation.browse.components.BrowseSourceSearchToolbar
 import eu.kanade.presentation.components.Scaffold
+import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.source.LocalSource
 import eu.kanade.tachiyomi.ui.browse.source.browse.BrowseSourcePresenter
 import eu.kanade.tachiyomi.ui.more.MoreController
@@ -39,6 +41,7 @@ fun SourceSearchScreen(
             BrowseSourceSearchToolbar(
                 searchQuery = presenter.searchQuery ?: "",
                 onSearchQueryChanged = { presenter.searchQuery = it },
+                placeholderText = stringResource(R.string.action_search_hint),
                 navigateUp = navigateUp,
                 onResetClick = { presenter.searchQuery = "" },
                 onSearchClick = { presenter.search() },