Search: reorder results by launchCount (#267)

* add app search result ordering by launchCount

* add reordering for other domains

* add preference in settings

* bruh moment

- database optimizaiton
- fixing obvious fallacy while reordering

* no reordering on empty queries && reordering early return

* avoiding deserialization

* listpreference

* search settings screen icons & categories

* regrouping

* early-return tweak

* Change ranking algorithm

* Pepega

* Prioritize launchCount over pinned for relevance sorting

---------

Co-authored-by: MM20 <15646950+MM2-0@users.noreply.github.com>

core/database/src/main/java/de/mm20/launcher2/database/SearchDao.kt

@@ -63,12 +63,9 @@ interface SearchDao {
     @Query("SELECT `key` FROM Searchable WHERE hidden = 1 AND type = 'calendar'")
     fun getHiddenCalendarEventKeys(): Flow<List<String>>
 
-
-
     @Query("DELETE FROM Searchable WHERE `key` IN (:keys)")
     fun deleteAll(keys: List<String>)
 
-
     @Query("UPDATE Searchable SET pinned = 1, hidden = 0 WHERE `key` = :key")
     fun pinExistingItem(key: String)
 
@@ -145,4 +142,7 @@ interface SearchDao {
 
     @Query("UPDATE Searchable Set `pinned` = 0, `launchCount` = 0 WHERE `key` = :key")
     suspend fun resetPinStatusAndLaunchCounter(key: String)
+
+    @Query("SELECT `key` FROM Searchable WHERE `key` IN (:keys) AND launchCount > 0 ORDER BY launchCount DESC, pinned DESC")
+    fun sortByRelevance(keys: List<String>): Flow<List<String>>
 }