fix(igdb): search only games a user can own and play

The search listed DLC and e-Reader levels, and the limit of
10 pushed the main games out. Keep main games, standalone
expansions, seasons, remakes, remasters, expanded games and
ports, and show 20 hits.

src/test/java/core_service/modules/igdb_adapter/service/IgdbApiServiceTest.java

@@ -194,7 +194,7 @@ class IgdbApiServiceTest extends AbstractUnitTest {
         expectToken();
         igdb.expect(requestTo(containsString("/games")))
                 .andExpect(content().string(allOf(containsString("search \"zelda\";"), containsString("version_parent = null"),
-                        containsString("limit 10"))))
+                        containsString("game_type = (0,4,7,8,9,10,11)"), containsString("limit 20"))))
                 .andRespond(withSuccess(ZELDA, MediaType.APPLICATION_JSON));
 
         List<IgdbApiService.Game> games = service.searchGames(" zelda ").orElseThrow();