Reduce stutter when entering Browse screen (#6435)

* More coil

* ExtensionController: Drop first text change event

* Browse-Source: Remove unnecessary load

* ExtensionPresenter: Increase debounce timeout

To avoid heavy list reload during first enter animation

app/src/main/java/eu/kanade/tachiyomi/extension/util/ExtensionLoader.kt

@@ -13,6 +13,7 @@ import eu.kanade.tachiyomi.source.CatalogueSource
 import eu.kanade.tachiyomi.source.Source
 import eu.kanade.tachiyomi.source.SourceFactory
 import eu.kanade.tachiyomi.util.lang.Hash
+import eu.kanade.tachiyomi.util.system.getApplicationIcon
 import eu.kanade.tachiyomi.util.system.logcat
 import kotlinx.coroutines.async
 import kotlinx.coroutines.runBlocking
@@ -181,7 +182,8 @@ internal object ExtensionLoader {
             isNsfw,
             sources = sources,
             pkgFactory = appInfo.metaData.getString(METADATA_SOURCE_FACTORY),
-            isUnofficial = signatureHash != officialSignature
+            isUnofficial = signatureHash != officialSignature,
+            icon = context.getApplicationIcon(pkgName)
         )
         return LoadResult.Success(extension)
     }