Minimize memory usage by reducing in-memory cover cache size (#2266)

Co-authored-by: AntsyLich <59261191+AntsyLich@users.noreply.github.com>
(cherry picked from commit 4c9cfd8da5f9c67daa4b6401a910f979fd79179f)

# Conflicts:
#	CHANGELOG.md

app/src/main/java/eu/kanade/tachiyomi/App.kt

@@ -19,6 +19,7 @@ import androidx.work.Configuration
 import androidx.work.WorkManager
 import coil3.ImageLoader
 import coil3.SingletonImageLoader
+import coil3.memory.MemoryCache
 import coil3.network.okhttp.OkHttpNetworkFetcherFactory
 import coil3.request.allowRgb565
 import coil3.request.crossfade
@@ -247,6 +248,12 @@ class App : Application(), DefaultLifecycleObserver, SingletonImageLoader.Factor
                 // SY <--
             }
 
+            memoryCache(
+                MemoryCache.Builder()
+                    .maxSizePercent(context)
+                    .build(),
+            )
+
             crossfade((300 * this@App.animatorDurationScale).toInt())
             allowRgb565(DeviceUtil.isLowRamDevice(this@App))
             if (networkPreferences.verboseLogging().get()) logger(DebugLogger())