search: add a type filter bar and share the search field

Add a filter chip bar above the keyboard to toggle songs, albums, artists
and playlists independently, all on by default and scrolling when it
overflows. Extract one compact 48dp search field and use it in both the
cross-library screen and the library tabs.

app/src/test/kotlin/com/subtracks/ui/search/SearchScreenTest.kt

@@ -49,10 +49,10 @@ class SearchScreenTest {
             }
         }
 
-        composeRule.onNodeWithText("Songs").assertIsDisplayed()
-        composeRule.onNodeWithText("Albums").assertIsDisplayed()
-        composeRule.onNodeWithText("Artists").assertIsDisplayed()
-        composeRule.onNodeWithText("Playlists").assertIsDisplayed()
+        composeRule.onNodeWithText("Road Song").assertIsDisplayed()
+        composeRule.onNodeWithText("Road Album").assertIsDisplayed()
+        composeRule.onNodeWithText("Road Artist").assertIsDisplayed()
+        composeRule.onNodeWithText("Road Trip").assertIsDisplayed()
 
         composeRule.onNodeWithText("Road Song").performClick()
         composeRule.onNodeWithText("Road Album").performClick()
@@ -107,6 +107,46 @@ class SearchScreenTest {
         composeRule.onNodeWithText("Road Trip").assertIsDisplayed()
     }
 
+    @Test
+    fun disablingATypeHidesItsSection() {
+        composeRule.setContent {
+            SubtracksTheme {
+                SearchScreen(
+                    query = "road",
+                    onQueryChange = {},
+                    results =
+                        SearchResults(
+                            albums = listOf(album("al-1", "Road Album")),
+                            songs = listOf(AlbumSongItem(song("s1", "Road Song"), coverArt = null)),
+                        ),
+                    filters = setOf(SearchFilter.Albums),
+                )
+            }
+        }
+
+        composeRule.onNodeWithText("Road Album").assertIsDisplayed()
+        composeRule.onNodeWithText("Road Song").assertDoesNotExist()
+    }
+
+    @Test
+    fun tappingAFilterChipTogglesIt() {
+        var toggled: SearchFilter? = null
+        composeRule.setContent {
+            SubtracksTheme {
+                SearchScreen(
+                    query = "ro",
+                    onQueryChange = {},
+                    results = SearchResults(),
+                    onToggleFilter = { toggled = it },
+                )
+            }
+        }
+
+        composeRule.onNodeWithText("Playlists").performClick()
+
+        assertEquals(SearchFilter.Playlists, toggled)
+    }
+
     private fun album(
         id: String,
         name: String,